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  <doc>
    <id>50954</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>5637</pageFirst>
    <pageLast>5646</pageLast>
    <pageNumber/>
    <edition/>
    <issue>23</issue>
    <volume>412</volume>
    <type>article</type>
    <publisherName>Springer</publisherName>
    <publisherPlace>Berlin, Heidelberg</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Method development for on-line species-specific sulfur isotopic analysis by means of capillary electrophoresis/multicollector ICP-mass spectrometry</title>
    <abstract language="eng">In this work, a method for species-specific isotopic analysis of sulfur via capillary electrophoresis hyphenated on-line with multicollector ICP-MS (CE/MC-ICP-MS) was developed. Correction for the mass bias caused by instrumental mass discrimination was realized via external correction with multiple-injection sample-standard bracketing. By comparing the isotope ratio measurement results obtained using the newly developed on-line CE/MC-ICP-MS method with those obtained via traditional MC-ICP-MS measurement after analyte/matrix separation by anion exchange chromatography for isotopic reference materials and an in-house bracketing standard, the most suitable data evaluation method could be identified. The repeatability for the sulfate-δ34S value (calculated from 18 measurements of a standard conducted over seven measurement sessions) was 0.57‰ (2SD) and thereby only twice that obtained with off-line measurements (0.30‰, n = 68). As a proof of concept for analysis of samples with a real matrix, the determination of the sulfur isotopic composition of naturally present sulfate was performed for different river systems. The CE/MC-ICP-MS results thus obtained agreed with the corresponding off-line MC-ICP-MS results within the 2SD ranges, and the repeatability of consecutive δ34S measurements (n = 3) was between 0.3‰ and 1.3‰ (2SD). Finally, the isotopic analysis of two different S-species in a river water sample spiked with 2-pyridinesulfonic acid (PSA) was also accomplished.</abstract>
    <parentTitle language="eng">Analytical and Bioanalytical Chemistry</parentTitle>
    <identifier type="doi">10.1007/s00216-020-02781-8</identifier>
    <identifier type="issn">1618-2642</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-509549</identifier>
    <enrichment key="date_peer_review">13.07.2020</enrichment>
    <enrichment key="RelatedIdentifier">https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/52879</enrichment>
    <author>Sebastian Faßbender</author>
    <author>K. Rodiouchkina</author>
    <author>F. Vanhaecke</author>
    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>River water sulfate</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Environmental speciation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sulfur isotopes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>On-line CE/MC-ICP-MS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Multiple-injection sample-standard bracketing</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/50954/Fassbender_etal_AnalBioanalChem_2020.pdf</file>
    <file>https://opus4.kobv.de/opus4-bam/files/50954/Fassbender_etal_AnalBioanalChem_2020_ESI.pdf</file>
  </doc>
  <doc>
    <id>50644</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
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    <belongsToBibliography>0</belongsToBibliography>
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    <title language="eng">Metal based pollutant assessment via diatoms - new possibilities via automated single cell-ICP-ToF-MS</title>
    <abstract language="eng">Diatoms are located at the bottom of the food chain. Toxicological relevant metals can possibly accumulate within the food web and cause harmful effects. Diatoms are a test system in ecotoxicology. Toxicological effects weaken the growth of algae which is by default investigated by means of fluorescence detection. On basis of the expose concentration as well as obtained fluorescence data potential threshold exceedance in e.g. surface waters is assessed.&#13;
However, this approach does not allow for the determination of “real” accumulated metal concentration in diatoms. Common approaches are based on bulk analysis via e.g. ICP-MS, ICP-OES or AAS. But, biological variability is completely disregarded.&#13;
To tackle this problem, alternative approaches are highly needed. Within the last years, sp-ICP-MS for nanoparticle as well as single cell analysis turned out as a powerful technique to analyze metal contents as well as size distributions on broad size range. But, common ICP-MS systems do not allow for multi-element detection within single particle/cell events. Thus, simultaneous MS detection devices are needed - just recently, ICP-ToF-MS experienced a revival.&#13;
Within our previous work, we developed an automated sample introduction system based on a HPLC system on-line with single particle-ICP-MS, which allowed for ionic background separation and single algae analysis. However, for unambiguous tracing several fingerprint elements and multielement analysis in single algae (diatoms) is needed. Thus, we coupled our previous setup on-line to ICP-ToF-MS. Test diatom species were exposed to test substances (Zn) as well as nanoparticles (FeNPs).&#13;
The developed setup allowed for a fast, automated and multielement analysis in single diatoms. Furthermore, we combined our approach with multivariate data assessment - multielement detection of characteristic fingerprint elements allowed for an unambiguous diatom tracing. Clustering of diatoms according to metal exposure concentration levels was enabled. Our approach is a new potential tool in ecotoxicological testing.</abstract>
    <enrichment key="eventName">53. DGMS &amp; 27th ICP-MS user meeting</enrichment>
    <enrichment key="eventPlace">Münster, Germany</enrichment>
    <enrichment key="eventStart">01.03.2020</enrichment>
    <enrichment key="eventEnd">04.03.2020</enrichment>
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    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Single cell-ICP-ToF-MS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Diatoms</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>New ecotoxicological testing tools</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>50352</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>poster</type>
    <publisherName/>
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    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">SPE HR-CS GF MAS – A New Sum Parameter Method for Extractable Organically Bound Fluorine (EOF) in Surface Water</title>
    <abstract language="eng">Introducing fluorine into organic molecules leads to new chemical/physical properties. Up to now, the OECD identified and categorized 4730 per- and polyfluoroalkyl substances-related CAS numbers. Especially in the field of technical applications (e.g. surface coatings, fire extinguishing foams) as well as pharmaceuticals, fluorinated substances gain in importance. Thus, an increasing release of fluorinated compounds into the environment is expected.&#13;
The high environmental persistence of perfluorinated compounds leads to the risk of bioaccumulation. Partially fluorinated substances (polyfluorinated compounds) undergo degradation; thus, further possible fluorine species occur, which may exhibit different toxic/chemical properties. However, current target methods (e.g., HPLC/MS-MS) are not applicable for a comprehensive screening as well as assessment of pollution.&#13;
Thus, the poster presents a new sum parameter method for quantitative determination of extractable organically bound fluorine (EOF) in surface water samples. The method is based on solid-phase extraction (SPE) for fluorinated compounds as well as quantitative separation of interfering inorganic fluoride in combination with high-resolution-continuum source graphite furnace molecular absorption spectrometry (HR-CS GF MAS) for quantitative analysis. By means of this technique, the detection of high resolution molecular absorption spectra (MAS) is enabled upon the addition of a modifier and the formation of a diatomic molecule (e.g. GaF) &#13;
After successful optimization of the SPE procedure (maximum concentration of extractable organic fluorine), enrichment factors of about 1000 were achieved, allowing for highly sensitive fluorine detection. Next to a species-unspecific response, limits of detection in the low nanogram per liter range were achieved and real surface water samples were analyzed. EOF values in the range of about 50-300 ng/L were detected.&#13;
The developed method allows for a fast and sensitive as well as selective screening of organically bound fluorine (EOF) in surface water samples, helping to elucidate pollution hotspots as well as discharge routes.</abstract>
    <enrichment key="eventName">2020 Winter Conference on Plasma Spectrochemistry</enrichment>
    <enrichment key="eventPlace">Tucson, AZ, USA</enrichment>
    <enrichment key="eventStart">12.01.2020</enrichment>
    <enrichment key="eventEnd">18.01.2020</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
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    <author>Marcus von der Au</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SPE HR-CS GF MAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sum parameter</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluorine Detection</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>50875</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>101964</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>49</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Single cell-inductively coupled plasma-time of flight-mass spectrometry approach for ecotoxicological testing</title>
    <abstract language="eng">Diatoms play a key role in assessing the eco-toxicology of metals and are already part of several national and international guidelines and regulations. Data on metal uptake and its correlation with a natural metal composition of the diatoms are mostly lacking on a cellular basis - mainly due to the lack of a suitable method on both the preparation and detection side. Therefore, within this work a fully automated approach based on the on-line coupling of a high performance liquid chromatograph (HPLC) and an inductively coupled plasma-time of flight-mass spectrometer (ICP-ToF-MS) was applied to analyze single cells of the alga Cyclotella meneghiniana multi-elementally in order to provide a deeper insight into the metal composition and its response to environmental stress. Multi-elemental analysis in single diatoms also enables assessment of combined toxicity of a set of metals. A set of four fingerprint elements, characteristically for diatoms (Mg, P, Si, Fe), were identified and hence the investigation of environmental stress onto the cells was enabled by performing incubation experiments with environmentally relevant toxic elements. It could be shown at moderate environmental stress caused by increasing the metal concentration in the medium (zinc) that the fingerprint element concentrations remained stable and thus the suitability of the selected elements for algae tracing was demonstrated. With regard to further ecotoxicological assessments, a multivariate approach was successfully applied allowing for cell classification upon different incubation concentration levels. This multivariate approach also facilitated an effective identification of three different diatom species (Cyclotella meneghiniana, Thalassiosira weissflogii and Thalassiosira pseudonana).</abstract>
    <parentTitle language="eng">Algal Research Biomass, Biofuels and Bioproducts</parentTitle>
    <identifier type="doi">10.1016/j.algal.2020.101964</identifier>
    <enrichment key="date_peer_review">20.07.2020</enrichment>
    <author>Marcus von der Au</author>
    <author>O. Borovinskaya</author>
    <author>L. Flamigni</author>
    <author>K. Kuhlmeier</author>
    <author>C. Büchel</author>
    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ICP-TOF-MS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ecotoxicological Testing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Diatoms</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>50503</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>poster</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">HR-CS-GF-MAS as a new screening method for emerging pollutants - per- and polyfluorinated substances in the environment</title>
    <abstract language="eng">The introduction of fluorine in organic molecules leads to new chemical/physical properties. Especially in the field of pharmaceuticals, fluorinated organic molecules are becoming more and more popular and at present amount up to 25% of market share, with an upward trend. The main benefits of fluorinated pharmaceuticals are: (i) enhanced fat solubility; (ii) enhanced interaction of catalytic-center of enzymes with fluorine-drugs; (iii) a delayed metabolism within the human body. Highly fluorinated organic substances are also used in technical applications (e.g. coatings, fire-extinguishing agents).&#13;
&#13;
Due to the broad variety of fluorinated substances and increasing production volumes numerous and up to date unknown fluorine-species are most likely to be present in the (aquatic) environment. Analytical methods to assess the degree of contamination of surface waters with organically bound fluorine are highly needed and up to now only combustion ion chromatography based method is available, which is relatively laborious.&#13;
&#13;
Since a few years’ high resolution-continuum source-graphite furnace atomic absorption spectrometers (HR-CS-GFAAS) are commercially available from Analytik Jena. By means of this technique, the detection of high resolution molecular absorption spectra (MAS) is enabled. Thus, fluoride is detectable upon the addition of a modifier and the formation of a diatomic molecule (e.g. GaF). Just recently, we applied this technique for total fluorine (mainly dissolved fluoride) analysis in river water samples.&#13;
&#13;
In the present work a HR-CS-GFMAS method for extractable organically bound fluorine (EOF) analysis in surface water samples was developed by us. The method is based on SPE extraction of organically bound fluorine even in the presence of high fluoride concentrations followed by HR-CS-GFMAS analysis upon elution. Due to high enrichment factors, LODs in the low ng/L range were achieved. We successfully applied our SPE HR-CS-GFMAS method to Rhine water samples and EOF in the range of about 50-300 ng/L was detectable.</abstract>
    <enrichment key="eventName">DGMS 2020</enrichment>
    <enrichment key="eventPlace">Münster, Germany</enrichment>
    <enrichment key="eventStart">01.03.2020</enrichment>
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    <author>Marcus von der Au</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SPE HR-CS GF MAS</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>50504</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">HR-CS-GF-MAS as a new screening method for emerging pollutants - per- and polyfluorinated substances in the environment</title>
    <abstract language="eng">The introduction of fluorine in organic molecules leads to new chemical/physical properties. Especially in the field of pharmaceuticals, fluorinated organic molecules are becoming more and more popular and at present amount up to 25% of market share, with an upward trend. The main benefits of fluorinated pharmaceuticals are: (i) enhanced fat solubility; (ii) enhanced interaction of catalytic-center of enzymes with fluorine-drugs; (iii) a delayed metabolism within the human body. Highly fluorinated organic substances are also used in technical applications (e.g. coatings, fire-extinguishing agents).&#13;
&#13;
Due to the broad variety of fluorinated substances and increasing production volumes numerous and up to date unknown fluorine-species are most likely to be present in the (aquatic) environment. Analytical methods to assess the degree of contamination of surface waters with organically bound fluorine are highly needed and up to now only combustion ion chromatography based method is available, which is relatively laborious.&#13;
&#13;
Since a few years’ high resolution-continuum source-graphite furnace atomic absorption spectrometers (HR-CS-GFAAS) are commercially available from Analytik Jena. By means of this technique, the detection of high resolution molecular absorption spectra (MAS) is enabled. Thus, fluoride is detectable upon the addition of a modifier and the formation of a diatomic molecule (e.g. GaF). Just recently, we applied this technique for total fluorine (mainly dissolved fluoride) analysis in river water samples.&#13;
&#13;
In the present work a HR-CS-GFMAS method for extractable organically bound fluorine (EOF) analysis in surface water samples was developed by us. The method is based on SPE extraction of organically bound fluorine even in the presence of high fluoride concentrations followed by HR-CS-GFMAS analysis upon elution. Due to high enrichment factors, LODs in the low ng/L range were achieved. We successfully applied our SPE HR-CS-GFMAS method to Rhine water samples and EOF in the range of about 50-300 ng/L was detectable.</abstract>
    <enrichment key="eventName">DGMS 2020</enrichment>
    <enrichment key="eventPlace">Münster, Germany</enrichment>
    <enrichment key="eventStart">01.03.2020</enrichment>
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    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Marcus von der Au</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SPE HR-CS GF MAS</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>51048</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>10</pageLast>
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    <edition/>
    <issue/>
    <volume/>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
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    <belongsToBibliography>1</belongsToBibliography>
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    <title language="eng">Substituting HF by HBF4 – an optimized digestion method for multi-elemental sediment analysis via ICP-MS/MS</title>
    <abstract language="eng">Determination of elemental mass fractions in sediments plays a major role in evaluating the environmental status of aquatic ecosystems. Herewith, the optimization of a new total digestion protocol and the subsequent analysis of 48 elements in different sediment reference materials (NIST SRM 2702, GBW 07313, GBW 07311 and JMC-2) based on ICP-MS/MS detection is presented. The developed method applies microwave acid digestion and utilizes HBF4 as fluoride source for silicate decomposition. Similar to established protocols based on HF, HBF4 ensures the dissolution of the silicate matrix, as well as other refractory oxides. As HBF4 is not acutely toxic; no special precautions have to be made and digests can be directly measured via ICP-MS without specific sample inlet systems, evaporation steps or the addition of e.g. H3BO3, in order to mask excess HF. Different acid mixtures with and without HBF4 were evaluated in terms of digestion efficiency based on the trace metal recovery. The optimized protocol (5 mL HNO3, 2 mL HCL, 1 mL HBF4) allows a complete dissolution of the analyzed reference materials, as well as quantitative recoveries for a wide variety of certified analytes. Low recoveries for e.g. Sr, Ba and rare earth elements due to fluoride precipitation of HF-based digestions protocols, can be avoided by the usage of HBF4 instead. Based on the usage of high purity HBF4 all relevant trace, as well as matrix elements can be analyzed with sufficiently low LOQs (0.002 μg L−1 for U up to 6.7 μg L−1 for Al). In total, 34 elements were within a recovery range of 80%–120% for all three analyzed reference materials GBW 07313, GBW 07311 and JMC-2. 14 elements were outside a recovery range of 80%–120% for at least one of the analyzed reference materials.</abstract>
    <parentTitle language="eng">Analytical Methods</parentTitle>
    <identifier type="doi">10.1039/D0AY01049A</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-510480</identifier>
    <enrichment key="date_peer_review">27.07.2020</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>T. Zimmermann</author>
    <author>Marcus von der Au</author>
    <author>A. Reese</author>
    <author>O. Klein</author>
    <author>L. Hildebrandt</author>
    <author>D. Pröfrock</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Reference Materials</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sediment</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HF free Digestion</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/51048/Analytical Methods-2020.pdf</file>
  </doc>
  <doc>
    <id>51355</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>128040</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>263</volume>
    <type>article</type>
    <publisherName>Elsevier Ltd.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Ingestion and toxicity of microplastics in the freshwater gastropodLymnaea stagnalis: No microplastic-induced effects alone or incombination with copper</title>
    <abstract language="eng">The interaction of microplastics with freshwater biota and their interaction with other stressors is still not very well understood. Therefore, we investigated the ingestion, excretion and toxicity of microplastics in the freshwater gastropod Lymnaea stagnalis.&#13;
&#13;
MP ingestion was analyzed as tissues levels in L. stagnalis after 6–96 h of exposure to 5–90 μm spherical polystyrene (PS) microplastics. To understand the excretion, tissue levels were determined after 24 h of exposure followed by a 12 h–7 d depuration period. To assess the toxicity, snails were exposed for 28 d to irregular PS microplastics (&lt;63 μm, 6.4–100,000 particles mL−1), both alone and in combination with copper as additional stressor. To compare the toxicity of natural and synthetic particles, we also included diatomite particles. Microplastics ingestion and excretion significantly depended on the particle size and the exposure/depuration duration. An exposure to irregular PS had no effect on survival, reproduction, energy reserves and oxidative stress. However, we observed slight effects on immune cell phagocytosis. Exposure to microplastics did not exacerbate the reproductive toxicity of copper. In addition, there was no pronounced difference between the effects of microplastics and diatomite. The tolerance towards microplastics may originate from an adaptation of L. stagnalis to particle-rich environments or a general stress resilience. In conclusion, despite high uptake rates, PS fragments do not appear to be a relevant stressor for stress tolerant freshwater gastropods considering current environmental levels of microplastics.</abstract>
    <parentTitle language="eng">Chemosphere</parentTitle>
    <identifier type="doi">10.1016/j.chemosphere.2020.128040</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-513551</identifier>
    <enrichment key="date_peer_review">28.12.2020</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>A. Weber</author>
    <author>M. von Randow</author>
    <author>A.-L. Voigt</author>
    <author>Marcus von der Au</author>
    <author>E. Fischer</author>
    <author>Björn Meermann</author>
    <author>M. Wagner</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Lymnaea stagnalis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microplastic-induced effects</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mixture toxicity</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/51355/Weber_Lymnaea stagnalis.pdf</file>
  </doc>
  <doc>
    <id>51072</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>e0236120</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>7</issue>
    <volume>15</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A metrologically traceable protocol for the quantification of trace metals in different types of microplastic</title>
    <abstract language="eng">The presence of microplastic (MP) particles in aquatic environments raised concern About possible enrichment of organic and inorganic pollutants due to their specific surface and chemical properties. In particular the role of metals within this context is still poorly understood. Therefore, the aim of this work was to develop a fully validated acid digestion protocol for metal analysis in different polymers, which is a prerequisite to study such interactions.&#13;
The proposed digestion protocol was validated using six different certified reference materials in the microplastic size range consisting of polyethylene, polypropylene, acrylonitrile butadiene styrene and polyvinyl chloride. As ICP-MS/MS enabled time-efficient, sensitive and robust analysis of 56 metals in one measurement, the method was suitable to provide mass fractions for a multitude of other elements beside the certified ones (As, Cd, Cr, Hg, Pb, Sb, Sn and Zn). Three different microwaves, different acid mixtures as well as different temperatures in combination with different hold times were tested for optimization purposes.&#13;
With the exception of Cr in acrylonitrile butadiene styrene, recovery rates obtained using the optimized protocol for all six certified reference materials fell within a range from 95.9% ± 2.7% to 112% ± 7%. Subsequent optimization further enhanced both precision and recoveries ranging from 103% ± 5% to 107 ± 4% (U; k = 2 (n = 3)) for all certified metals (incl. Cr) in acrylonitrile butadiene styrene. The results clearly show the analytical challenges that come along with metal analysis in chemically resistant plastics. Addressing specific analysis Tools for different sorption scenarios and processes as well as the underlying kinetics was beyond this study’s scope. However, the future application of the two recommended thoroughly validated total acid digestion protocols as a first step in the direction of harmonization of metal analysis in/on MP will enhance the significance and comparability of the generated data. It will contribute to a better understanding of the role of MP as vector for trace metals in the environment.</abstract>
    <parentTitle language="eng">PLOS ONE</parentTitle>
    <identifier type="doi">10.1371/journal.pone.0236120</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-510727</identifier>
    <enrichment key="date_peer_review">03.08.2020</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>L. Hildebrandt</author>
    <author>Marcus von der Au</author>
    <author>T. Zimmermann</author>
    <author>A. Reese</author>
    <author>J. Ludwig</author>
    <author>D. Pröfrock</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Microplatic</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Digestion</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Analytical Chemistry</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/51072/PlosOne_2020.pdf</file>
  </doc>
  <doc>
    <id>52076</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>Article number 157</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>32</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Does galvanic cathodic protection by aluminum anodes impact marine organisms?</title>
    <abstract language="eng">Background: Cathodic protection by sacrifcial anodes composed of aluminum-zinc-indium alloys is often applied to protect ofshore support structures of wind turbines from corrosion. Given the considerable growth of renewable energies and thus ofshore wind farms in Germany over the last decade, increasing levels of aluminum, Indium and zinc are released to the marine environment. Although these metals are ecotoxicologically well-studied, data regarding their impact on marine organisms, especially sediment-dwelling species, as well as possible ecotoxicological efects of galvanic anodes are scarce. To investigate possible ecotoxicological efects to the marine environment, the diatom Phaedactylum tricornutum, the bacterium Aliivibrio fscheri and the amphipod Corophium volutator were exposed to dissolved galvanic anodes and solutions of aluminum and zinc, respectively, in standardized laboratory tests using natural seawater. In addition to acute toxicological efects, the uptake of these elements by C. volutator was investigated.&#13;
Results: The investigated anode material caused no acute toxicity to the tested bacteria and only weak but signifcant efects on algal growth. In case of the amphipods, the single elements Al and Zn showed signifcant efects only at the highest tested concentrations. Moreover, an accumulation of Al and In was observed in the crustacea species.&#13;
Conclusions: Overall, the fndings of this study indicated no direct environmental impact on the tested marine organisms by the use of galvanic anodes for cathodic protection. However, the accumulation of metals in, e.g., crustaceans might enhance their trophic transfer within the marine food web.</abstract>
    <parentTitle language="eng">Environmental Sciences Europe</parentTitle>
    <identifier type="doi">10.1186/s12302-020-00441-3</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-520769</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">08.02.2021</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>A. M. Bell</author>
    <author>Marcus von der Au</author>
    <author>J. Regnery</author>
    <author>M. Schmid</author>
    <author>Björn Meermann</author>
    <author>G. Reifferscheid</author>
    <author>T. Ternes</author>
    <author>S. Buchinger</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Galvanic anodes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal toxicity</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal uptake</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Corophium volutator</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Seawater</value>
    </subject>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Infrastruktur</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/52076/Bell et al. Environ Sci Eur.pdf</file>
  </doc>
  <doc>
    <id>52077</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>e8953</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>35</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Determination of metal uptake in single organisms, Corophiumvolutator, via complementary electrothermal vaporization/inductively coupled plasma mass spectrometry and laserablation/inductively coupled plasma mass spectrometry</title>
    <abstract language="eng">Rationale: (Eco-)toxicological effects are mostly derived empirically and are notcorrelated with metal uptake. Furthermore, if the metal content is determined,mostly bulk analysis of the whole organism population is conducted; thus, biologicalvariability is completely disregarded, and this may lead to misleading results. Toovercome this issue, we compared two different solid sampling techniques for theanalysis of single organisms.Methods: In this study, complementary electrothermal vaporization/inductivelycoupled plasma mass spectrometry (ETV/ICP-MS) , laser ablation/inductivelycoupled plasma mass spectrometry (LA/ICP-MS)-based methods for the analysisof individual organisms were developed and the results obtained were comparedwith the concentrations obtained after digestion and measured using ICP-MS.For this purpose, a common (eco-)toxicological test organism, the mud shrimpCorophium volutator, was selected. As proof-of-concept application, these organismswere incubated with environmentally relevant metals from galvanic anodes, whichare often used for protection against metal corrosion in, for example, offshorewind farms.Results: The bulk analysis revealed that large quantities of the incubated elementswere detectable. Using the ETV/ICP-MS method, we could identify a highbiovariability within the population of organisms tested. Using the LA/ICP-MSmethod, it could be determined that the large quantities of the elements detectedwere due to adsorption of the metals and not due to uptake, which correlates wellwith the absence of (eco-)toxicological effects.Conclusions: The results obtained imply the efficiency of complementary methods toexplain the absence or presence of (eco-)toxicological effects. In particular, methodsthat allow for single-organism analysis or provide even a spatial resolution supportthe interpretation of ecotoxicological findings.</abstract>
    <parentTitle language="eng">Rapid communications in mass spectrometry</parentTitle>
    <identifier type="doi">10.1002/rcm.8953</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">08.02.2021</enrichment>
    <author>Marcus von der Au</author>
    <author>H. Karbach</author>
    <author>A. M. Bell</author>
    <author>O. B. Bauer</author>
    <author>U. Karst</author>
    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ICP-MS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal toxicity</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal uptake</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Corophium volutator</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Seawater</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>53333</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Detection of PFAS pollution in environmental samples - A Fast &amp; sensitive PFAS sum parameter method using HR CS GFMAS</title>
    <abstract language="eng">The substance class of per- and polyfluorinated alkyl substances (PFAS) comprises more than 5300 organic compounds. PFAS are completely fluorinated on at least one carbon atom. They are associated with negative impacts on human and animal health, are extremely persistent in the environment, and bioaccumulate along food chains. Therefore, PFAS are classified as emerging pollutants. At the same time, their physicochemical properties make them attractive for use in diverse technical applications. They are both hydrophobic and lipophobic and show high thermal as well as chemical resistance due to the strong C-F bond.&#13;
First regulations of some PFAS in combination with the technically excellent properties generated an innovation pressure and led to an enormous increase in the number of fluorinated substitution compounds. Due to the increasing complexity of this substance class, target analysis is not able to cover such a variety and multitude of analytes.&#13;
Therefore, a suitable PFAS sum parameter method is necessary for an accurate detection of PFAS pollution in the environment, the identification of PFAS hotspots and an evaluation of appropriate remediation measures.&#13;
Here we provide insights into the current state of PFAS sum parameter development and present our latest results on method development for the quantitative analysis of PFAS as extractable organically bound fluorine (EOF) in environmental samples using high-resolution molecular absorption spectrometry (HR-CS-GFMAS). For this purpose, we optimized the extraction of PFAS from different solid matrices with simultaneous separation of inorganic fluoride. For quantification resulting extracts were measured using a fluorine specific HR-CS-GFMAS method. By adding gallium salt solutions as modifiers in HR-CS-GFMAS, fluorine can be indirectly quantified very selectively by the in situ formation of GaF with low limits of quantification (instrumental LOQ c(F) &lt; 3 µg/L). Here we will show results from real soil samples from sites with and without known contamination.</abstract>
    <enrichment key="eventName">6. Doktorandenseminar des Deutschen Arbeitskreises für Analytische Spektroskopie (DAAS)</enrichment>
    <enrichment key="eventPlace">Online meeting</enrichment>
    <enrichment key="eventStart">20.09.2021</enrichment>
    <enrichment key="eventEnd">21.09.2021</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Lennart Gehrenkemper</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>High resolution-continuum source-graphite furnace molecular absorption spectrometry (HR-CS-GFMAS)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Soil</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Per- and polyfluorinated alkyl substances (PFASs)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Extractable organically bound fluorine (EOF)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Solid-liquid extraction</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>53282</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>poster</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Metrology for the recycling of Technology Critical Elements to support Europe´s circular economy agenda</title>
    <abstract language="eng">Technology critical elements (TCE) are key materials for high-tech products such as smartphones, notebooks and monitors. Their demand is expected to increase exponentially due to the shift towards greener economy through the deployment of renewable energy and electro mobility solutions (European Green Deal). This and the lack of TCE production within the EU, puts the market under pressure and leads to increasing prices. The need to secure TCE supply has become even more pressing under the current health crisis and it is a major objective of the Covid-19 Recovery Plan aimed at reinforcing Europe’s resilience and autonomy. A sustainable solution is effective recycling and finally a circular economy. However, the analysis of waste streams is difficult and requires suitable SI traceable analytical solutions to allow for comparability of measurement results throughout the recycling process. The required reference materials (RMs) certified for TCE in the corresponding waste or secondary raw materials and specific documentary standards for TCE to comply with ISO/IEC 17025 requirements, however, are lacking. Furthermore, waste from the so-called “urban mine” is extremely heterogeneous making the estimation of its TCE content difficult. Currently, there is a lack of knowledge at the European level about the TCE stocks and flows in the urban mine. Given the high volume of waste generated and received, fast reliable analytical methods as well as sampling and sample preparation strategies are needed to determine the economic value of the waste and of the final product and to develop and improve recycling procedures.&#13;
Within this project we focus on TCEs (Co, Ga, Ge, In, Ta, Nd, Pr, Dy, Gd, La, Au, Pt, Pd, Rh), which have been selected from the list of critical elements for Europe established by the EU in 2020. The overall objective of the project is to provide the reliable and SI traceable determination of TCE in urban waste material at µg/g levels to increase the efficiency and accuracy of TCE recycling. This will be realized by developing validated SI-traceable reference methods, developing traceable and validated RMs for the TCEs, validating the use of the routine methods and RMs for real world applications and facilitating the take up of the technology and measurement infrastructure developed in the project by the measurement supply chain, standards developing organizations and end users.&#13;
This presentation will give an overview of the consortium, the project structure and the planned research. First activities will be presented as well.</abstract>
    <enrichment key="eventName">International Conference on Raw Materials and Circular Economy</enrichment>
    <enrichment key="eventPlace">Athens, Greece</enrichment>
    <enrichment key="eventStart">05.09.2021</enrichment>
    <enrichment key="eventEnd">09.09.2021</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>Jochen Vogl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>TCE</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Reference material</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metrology</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Circular Economy</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>52448</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Metrology for the recycling of technology critical elements to support Europe’s circular economy agenda (MetrocycleEU)</title>
    <abstract language="eng">Technology critical elements (TCE) are key materials for high-tech products such as smartphones, notebooks and monitors. Their demand is expected to increase exponentially as a result of the shift towards greener economy through the deployment of renewable energy and electro mobility solutions (European Green Deal). This and the lack of natural resources in the EU, puts the market under pressure and leads to increasing prices. The need to secure TCE supply has become even more pressing under the current health crisis and it is a major objective of the Covid-19 Recovery Plan aimed at reinforcing Europe’s resilience and autonomy. A sustainable solution for solving this problem is first through recycling and finally through a circular economy. However, the analysis of waste streams is a complicating factor and requires suitable analytical solutions first, which need to be traceable to the SI to allow for comparability of measurement results throughout the recycling process or the circular economy. The required reference materials certified for TCE in the corresponding waste or secondary raw materials and specific documentary standards for TCE to comply with ISO/IEC 17025 requirements, however, are lacking. Furthermore, wastes from the urban mine are extremely heterogeneous, which makes the estimation of their TCE content difficult. Currently there is a lack of knowledge at the European level about the TCE stocks and flows in the urban mine. Given the high volume of waste generated and received, fast reliable analytical methods as well as sampling and sample preparation strategies are needed to determine the economic value of the waste and of the final product and to develop recycling procedures. Within this project we focus on a set of TCEs(Co, Ga, Ge, In, Ta, Nd, Pr, Dy, Gd, La, Au, Pt, Pd, Rh), which have been selected from the list of critical elements for Europe established by the EU in 2017. The overall objective of the project is to provide reliable and SI traceable determination of TCE in urban waste material at µg/g levels in order to increase the efficiency and accuracy of TCE recycling. This will be realized by developing validated SI-traceable reference methods, developing traceable and validated reference materials for the TCEs, validating the use of the routine methods and reference materials for real world applications and facilitating the take up of the technology and measurement infrastructure developed in the project by the measurement supply chain, standards developing organisations and end users.</abstract>
    <enrichment key="eventName">6. Sitzung des Beirats Umwelt</enrichment>
    <enrichment key="eventPlace">Online meeting</enrichment>
    <enrichment key="eventStart">12.03.2020</enrichment>
    <enrichment key="eventEnd">12.03.2020</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Jochen Vogl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Technology-critical elements</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Circular economy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Green Deal</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metrology</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Circular Economy</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>52996</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>5279</pageFirst>
    <pageLast>5289</pageLast>
    <pageNumber/>
    <edition/>
    <issue>21</issue>
    <volume>413</volume>
    <type>article</type>
    <publisherName>Springer</publisherName>
    <publisherPlace>Berlin</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Species-specific isotope dilution analysis of monomethylmercury in sediment using GC/ICP-ToF-MS and comparison with ICP-Q-MS and ICP-SF-MS</title>
    <abstract language="eng">A recently introduced inductively coupled plasma-time-of-flight-mass spectrometer (ICP-ToF-MS) shows enhanced sensitivity compared to previous developments and superior isotope ratio precision compared to other ToF and commonly used single-collector ICP-MS instruments. Following this fact, an improvement for isotope dilution ICP-MS using the new instrumentation has been reported. This study aimed at investigating whether this improvement also meets the requirements of species-specific isotope dilution using GC/ICP-MS, where short transient signals are recorded. The results of the analysis of monomethylmercury (MMHg) of a sediment reference material show that isotope ratio precision of ICP-MS instruments equipped with quadrupole, sector-field, and time-of-flight mass analyzers is similar within a broad range of peak signal-to-noise ratio when analyzing one isotopic system. The procedural limit of quantification (LOQ) for MMHg, expressed as mass fraction of Hg being present as MMHg, w(Hg)MMHg, was similar as well for all investigated instruments and ranged between 0.003 and 0.016 μg/kg. Due to the simultaneous detection capability, the ICP-ToF-MS might, however, be more favorable when several isotopic systems are analyzed within one measurement. In a case study, the GC/ICP-ToF-MS coupling was applied for analysis of MMHg in sediments of Finow Canal, a historic German canal heavily polluted with mercury. Mass fractions between 0.180 and 41 μg/kg (w(Hg)MMHg) for MMHg, and 0.056 and 126 mg/kg (w(Hg)total) for total mercury were found in sediment samples taken from the canal upstream and downstream of a former chemical plant.</abstract>
    <parentTitle language="eng">Analytical and bioanalytical chemistry</parentTitle>
    <identifier type="issn">1618-2642</identifier>
    <identifier type="doi">10.1007/s00216-021-03497-z</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-529967</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">02.08.2021</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Sebastian Faßbender</author>
    <author>Marcus von der Au</author>
    <author>Maren Koenig</author>
    <author>J. Pelzer</author>
    <author>Christian Piechotta</author>
    <author>Jochen Vogl</author>
    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Methylmercury</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Legacy pollution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Finow Canal</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Isotope dilution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mercury speciation</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="institutes" number="">1.8 Umweltanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/52996/Fassbender_et_al_AnalBioanalChem_2021.pdf</file>
    <file>https://opus4.kobv.de/opus4-bam/files/52996/Fassbender_et_al_AnalBioanalChem_2021_ESI.pdf</file>
  </doc>
  <doc>
    <id>52945</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
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    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Mercury speciation in sediments of a historic industrially used canal in Northern Germany using SSID GC-ICP-ToF-MS</title>
    <abstract language="eng">Sediments and soils can act as sinks of species of inorganic mercury (Hg2+), while they are simultaneously sources of volatile (Hg0) and organic species, such as monomethylmercury (MMHg). Although the fraction of MMHg in total Hg of sediments is suggested to be as low as 0.1 1%, MMHg is a serious threat for humans and wildlife due to its high potential for bioaccumulation and biomagnification and the ability to pass the blood-brain barrier. This is highlighted by exceptionally high MMHg concentrations found in fish and fish predators, as well as aquatic insects and birds living in close vicinity to Hg contaminated waterbodies. Humans are exposed to MMHg mainly by ingestion of (predatory) fish and rice.&#13;
One example of a highly Hg contaminated waterbody is Finow Canal, the oldest artificial waterway still in operation in Germany, with Hg mass fractions of up to or even more than 100 µg/g found in the sediment, which are suggested to be attributable to a chemical plant producing (among other things) mercury-based seed dressings. Despite this high mass fraction of Hg, anaerobic conditions, high amounts of organic matter and iron, which are all favorable for Hg methylation, no investigations of Hg speciation have been conducted there up to now.&#13;
We investigated Hg speciation in sediments of Finow Canal on length from before the known polluted sited into the confluence with another waterway using species-specific isotope dilution (SSID) GC-ICP-ToF-MS. Mass fraction of up to 41 ng/g MMHg were determined in samples taken from Finow Canal and elevated concentrations could also be found around 14 km downstream of the confluence of Finow Canal with another waterway. In addition to this, highly toxic monoethylmercury (EtHg) could be detected in most of the sediment samples. These results are the first evidence of the occurrence of MMHg in this region and show the need for further investigation of the whole regional ecosystem, as well as the consideration of possible measures of remediation.</abstract>
    <enrichment key="eventName">Virtual Goldschmidt 2021</enrichment>
    <enrichment key="eventPlace">Online meeting</enrichment>
    <enrichment key="eventStart">04.07.2021</enrichment>
    <enrichment key="eventEnd">09.07.2021</enrichment>
    <enrichment key="opus.source">publish</enrichment>
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    <enrichment key="InvitedTalks">0</enrichment>
    <author>Sebastian Faßbender</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Methylmercury</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Finow Canal</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Legacy pollution</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Isotope dilution</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="institutes" number="">1.8 Umweltanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>53371</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Herausforderungen bei der Analytik von Technologie-kritischen Elementen (TCE) in Abfällen</title>
    <abstract language="deu">Technologie-kritische Elemente (TCE) sind unentbehrliche Materialien für High-Tech Produkte wie Smartphones, Notebooks und Monitors. Ihr Bedarf wird voraussichtlich aufgrund des gesellschaftlichen Wandels hin zu einer grünen Ökonomie exponentiell ansteigen. Dieser Wandel wird vor allem auch durch erneuerbare Energien und Elektromobilität geprägt (European Green Deal). Diese Entwicklung in Verbindung mit einer nahezu fehlenden TCE Produktion in Europa setzt den Markt unter Druck und führt zu steigenden Preisen. Die Sicherung des TCE Nachschubs wurde in der gegenwärtigen Gesundheitskrise noch dringender und wurde daher auch zu einem der Hauptthemen des COVID-19 Recovery Plan, der eine Stärkung der europäischen Resilienz und Autonomie zum Ziel hat. Ein nachhaltige Lösung ist das Recycling der Abfall- bzw. Wertstoffe und letztendlich eine Circular Economy. Allerdings ist die Analyse von Abfallströmen schwierig und erfordert geeignete analytische Lösungen, die SI-rückführbare und somit vergleichbare Messergebnisse im gesamten Recyclingprozess ermöglichen. Die dafür erforderlichen, für TCE zertifizierte, Referenzmaterialien und nötige standardisierte Verfahren fehlen bisher nahezu vollständig. In diesem Beitrag werden die analytischen Herausforderungen, wie z.B. die extreme Heterogenität der Materialien, Schwierigkeiten beim Probenaufschluss und das Fehlen von Referenzmaterialien diskutiert. Und es wird das EMPIR-Projekt MetroCycleEU vorgestellt, dessen Ziel es ist Referenz- und Routineverfahren für ausgewählte TCE (Co, Ga, Ge, In, Ta, Nd, Pr, Dy, Gd, La, Au, Pt, Pd, Rh) zu entwickeln und Referenzmaterialien für Platinen, LEDs und Li-Batterien bereitzustellen.</abstract>
    <enrichment key="eventName">Workshop Nachhaltige Prozesse für eine Circular Economy</enrichment>
    <enrichment key="eventPlace">Berlin, Germany</enrichment>
    <enrichment key="eventStart">23.09.2021</enrichment>
    <enrichment key="eventEnd">23.09.2021</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <enrichment key="InvitedTalks">0</enrichment>
    <author>Jochen Vogl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>TCE</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Circular economy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metrology</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Traceability</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Uncertainty</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Circular Economy</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>54359</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>9</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>295</volume>
    <type>article</type>
    <publisherName>Elsevier Ltd.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">A fast and simple PFAS extraction method utilizing HR–CS–GFMAS for soil samples</title>
    <abstract language="eng">Here, we describe an optimized fast and simple extraction method for the determination of per- and polyfluorinated alkyl substances (PFASs) in soils utilizing high resolution-continuum source-graphite furnace molecular absorption spectrometry (HR–CS–GFMAS). To omit the bias of the solid phase extraction (SPE) step commonly used during the analysis of extractable organically bound fluorine (EOF) we optimized a fast and simple SPE-free extraction method. The developed extraction method consists of a liquid-solid extraction using acidified methanol without any additional SPE. Four extraction steps were representative to determine a high proportion of the EOF (&gt;80% of eight extractions). Comparison of the optimized method with and without an additional SPE clean-up step revealed a drastic underestimation of EOF concentrations using SPE. Differences of up to 94% were observed which were not explainable by coextracted inorganic fluoride. Therefore, not only a more accurate but also a more economic as well as ecologic method (bypassing of unnecessary SPE) was developed. The procedural limit of quantification (LOQ) of the developed method was 10.30 μg/kg which was sufficient for quantifying EOF concentrations in all tested samples. For future PFAS monitoring and potential regulative decisions the herein presented optimized extraction method can offer a valuable contribution.</abstract>
    <parentTitle language="eng">Chemosphere</parentTitle>
    <identifier type="doi">10.1016/j.chemosphere.2022.133922</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">17.02.2022</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>Fabian Simon</author>
    <author>Lennart Gehrenkemper</author>
    <author>Marcus von der Au</author>
    <author>Phillip Wittwer</author>
    <author>Philipp Roesch</author>
    <author>Jens Pfeifer</author>
    <author>Antje Cossmer</author>
    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Per- and polyfluorinated alkly substances (PFASs)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>High resolution-continuum source-graphite furnace molecular absorption spectrometry (HR-CS-GFMAS)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Soils</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Solid phase extraction (SPE)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Extractable organically bound fluorine (EOF)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Solid-liquid extraction</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="institutes" number="">4 Material und Umwelt</collection>
    <collection role="institutes" number="">4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>55271</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>86</pageFirst>
    <pageLast>98</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>14</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Transparent polycarbonate coated with CeO2 nanozymes repel Pseudomonas aeruginosa PA14 biofilms</title>
    <abstract language="eng">Highly transparent CeO2/polycarbonate surfaces were fabricated that prevent adhesion, proliferation, and the spread of bacteria. CeO2 nanoparticles with diameters of 10–15 nm and lengths of 100–200 nm for this application were prepared by oxidizing aqueous dispersions of Ce(OH)3 with H2O2 in the presence of nitrilotriacetic acid (NTA) as the capping agent. The surface-functionalized water-dispersible CeO2 nanorods showed high catalytic activity in the halogenation reactions, which makes them highly efficient functional mimics of haloperoxidases. These enzymes are used in nature to prevent the formation of biofilms through the halogenation of signaling compounds that interfere with bacterial cell–cell communication (“quorum sensing”). Bacteria-repellent CeO2/polycarbonate plates were prepared by dip-coating plasma-treated polycarbonate plates in aqueous CeO2 particle dispersions. The quasi-enzymatic activity of the CeO2 coating was demonstrated using phenol red enzyme assays. The monolayer coating of CeO2 nanorods (1.6 µg cm−2) and the bacteria repellent properties were demonstrated by atomic force microscopy, biofilm assays, and fluorescence measurements. The engineered polymer surfaces have the ability to repel biofilms as green antimicrobials on plastics, where H2O2 is present in humid environments such as automotive parts, greenhouses, or plastic containers for rainwater.</abstract>
    <parentTitle language="eng">Nanoscale</parentTitle>
    <identifier type="doi">10.1039/D1NR03320D</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">18.07.2022</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>O. Jegel</author>
    <author>F. Pfitzner</author>
    <author>A. Gazanis</author>
    <author>J. Oberländer</author>
    <author>E. Pütz</author>
    <author>M. Lange</author>
    <author>Marcus von der Au</author>
    <author>Björn Meermann</author>
    <author>V. Mailänder</author>
    <author>A. Klasen</author>
    <author>R. Heermann</author>
    <author>W. Tremel</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CeO2</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanorods</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanomaterial</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Umwelt-Material-Interaktionen</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>54417</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>12</pageFirst>
    <pageLast>15</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>28</volume>
    <type>article</type>
    <publisherName>Gesellschaft Deutscher Chemiker</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Schnelle und einfache Extraktion von PFAS aus Bodenproben: Optimierte EOF-Bestimmung mittels HR-CS-GFMAS</title>
    <abstract language="deu">Per- und polyfluorierte Alkylsubstanzen (PFAS) bilden eine sehr komplexe Schadstoffgruppe mit über 6300 Einzelsubstanzen, die in vielfältiger Form in die Umwelt eingetragen werden. Für ein effektives Monitoring dieser Schadstoffklasse benötigt es ein Zusammenspiel aus Summenparameter-Analytik zur hot-spot-Identifizierung und Klassifizierung von Belastungssituationen sowie einer nachgeschalteten target-Analytik zur Identifizierung von Eintragswegen, die zugleich ein tieferes Verständnis von Transformationsprozessen ermöglicht. In diesem Beitrag präsentieren wir eine optimierte Extraktions-Methode für die PFAS-Summenparameteranalytik. Mit Hilfe dieser können bisher verwendete zeit- und kostenintensive Festphasenextraktionen (SPE) umgangen und PFAS-Extraktionseffizienzen gesteigert werden. Die methodische Bestimmungsgrenze (LOQ) war mit 10,30 μg/kg (Fluor pro Bodenprobe) ausreichend für alle 9 untersuchten Realbodenproben.</abstract>
    <parentTitle language="deu">Mitteilungen der Fachgruppe Umweltchemie und Ökotoxikologie</parentTitle>
    <identifier type="issn">1618-3258</identifier>
    <identifier type="url">https://www.gdch.de/fileadmin/downloads/Netzwerk_und_Strukturen/Fachgruppen/Umweltchemie_Oekotoxikologie/mblatt/2022/Heft122.pdf</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>Lennart Gehrenkemper</author>
    <author>Fabian Simon</author>
    <author>Björn Meermann</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>High resolution-continuum source-graphite furnace molecular absorption spectrometry (HR-CS-GFMAS)</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Per- and polyfluorinated alkyl substances (PFASs)</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Extractable organically bound fluorine (EOF)</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Solid-liquid extraction</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Böden</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Graue Literatur</collection>
  </doc>
  <doc>
    <id>54628</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">EOF Analyse in Sedimenten Mittels HR-CS-GFMAS</title>
    <abstract language="deu">Im Vortrag wird die Entwicklung einer Methode sowie Analyse von PFAS mittels HR-CS-GFMAS in Sedimentzeitreihen der Umweltprobenbank vorgestellt.</abstract>
    <enrichment key="eventName">AK Umweltmonitoring der GDCh</enrichment>
    <enrichment key="eventPlace">Online meeting</enrichment>
    <enrichment key="eventStart">05.04.2022</enrichment>
    <enrichment key="eventEnd">05.04.2022</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="InvitedTalks">1</enrichment>
    <author>Björn Meermann</author>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>HR-CS-GFMAS</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Sedimente</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Umweltprobenbank</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>57939</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>29</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Non-extractable PFAS in functional textiles − Characterization by complementary methods: oxidation, hydrolysis, and fluorine sum parameters</title>
    <abstract language="eng">Per- and polyfluoroalkyl substances (PFAS) are widely used for durable water-repellent finishing of different fabrics and textiles like outdoor clothing, carpets, medical textiles and more. Existing PFAS extraction techniques followed by target analysis are often insufficient in detecting widely used side-chain fluorinated polymers (SFPs) that are barely or non-extractable. SFPs are typically copolymers consisting of a non-fluorinated backbone with perfluoroalkyl side-chains to obtain desired properties. We compared the accessible analytical information and performance of complementary techniques based on oxidation (dTOP assay, PhotoTOP), hydrolysis (THP assay), standard extraction, extractable organic fluorine (EOF), and total fluorine (TF) with five functional textiles and characterized 7 further textiles only by PhotoTOP oxidation. The results show that when applied directly to textile samples, oxidation by dTOP and PhotoTOP and also hydrolysis by the THP are able to capture large fractions of the TF in form of perfluoroalkyl side-chains present in the textiles while methods relying on extracts (EOF, target and non-target analysis) were much lower (e.g., factor ~25-50 lower). The conversion of large fractions of the measured TF into PFCAs or FTOHs from fluorinated side chains is in contrast to previous studies. Concentrations ranged from &lt;LOQ to over ~1000 mg F/kg after oxidation/hydrolysis and &lt;LOQ to over 2000 mg F/kg for TF, while EOF and target PFAS in extracts were detected at much lower concentrations (up to ~ 60 mg F/kg) (amount of fluorine in the order: extraction &lt;&lt; EOF &lt;&lt; oxidation/hydrolysis ≤ TF). Perfluoroalkyl carboxylic acids (PFCAs) and fluorotelomer alcohols (FTOHs) from THP and PhotoTOP both represented the chain-length distribution in the textiles showing that long-chain SFPs are still used in current textiles. Further advantages and disadvantages of the applied methods are discussed.</abstract>
    <parentTitle language="eng">Environmental Science: Processes &amp; Impacts</parentTitle>
    <identifier type="doi">10.1039/D3EM00131H</identifier>
    <identifier type="issn">2050-7887</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">07.08.2023</enrichment>
    <author>J. Zweigle</author>
    <author>C. Capitain</author>
    <author>Fabian Michael Simon</author>
    <author>Philipp Roesch</author>
    <author>B. Bugsel</author>
    <author>C. Zwiener</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sum parameter</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Comsumer good samples</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="institutes" number="">4 Material und Umwelt</collection>
    <collection role="institutes" number="">4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>55532</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Teaching an old dog new tricks – molecular absorption spectrometry for fluorine analysis</title>
    <abstract language="eng">The introduction of fluorine in organic molecules leads to new chemical/physical properties and up to now more than 6000 fluorinated substances are on the market. Especially in the field of pharmaceuticals, fluorinated organic molecules are becoming more and more popular and at present amount up to 25% of market share, with an upward trend. Highly fluorinated organic substances are also used in technical applications (e.g., coatings, fire-extinguishing agents, textiles). However, next to beneficial aspects of per- and polyfluorinated compounds (PFAS) these substances belong to the class of “emerging contaminants” in particular due to their high persistence and ubiquitous presence in the environment. Due to the large variety of fluorinated substances and increasing production volumes, it is most likely that numerous and up to date unknown fluorine-species are present in the (aquatic) environment. Sum parameter analytical methods to assess the degree of contamination of surface waters with organically bound fluorine are highly needed.&#13;
Within this presentation the development of a high resolution-continuum source-graphite furnace molecular absorption spectrometry (HR-CS-GFMAS) method for PFAS analysis is presented. Fluorine detection is enabled upon the addition of a molecule forming agent – Ga turned out being the most sensitive one. Furthermore, the injection as well as temperature program was optimized, and appropriate solid phase extraction (SPE) phases were identified for PFAS extraction. Our developed HR-CS-GFMAS method turned out as a versatile tool in PFAS analysis in a broad variety of matrices – some recent applications will be highlighted as well.</abstract>
    <enrichment key="eventName">20th European Symposium on Fluorine Chemistry</enrichment>
    <enrichment key="eventPlace">Berlin, Germany</enrichment>
    <enrichment key="eventStart">14.08.2022</enrichment>
    <enrichment key="eventEnd">19.08.2022</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="InvitedTalks">1</enrichment>
    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HR-CS-GFMAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PFAS Analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Coparison study CIC &lt;=&gt; HR-CS-GFMAS</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>57814</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>10</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>336</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigating the behavior of ultratrace levels of nanoparticulate and ionic  silver in a seawater mesocosm using single particle inductively coupled  plasma – mass spectrometry</title>
    <abstract language="eng">Silver nanoparticles (AgNPs) nowadays appear in close to 24% of consumer products that contain engineered nanomaterials. Thus, they are expected to be released into the environment, where their fate and effect are still undetermined. Considering the evidenced efficacy of the single particle Inductively Coupled Plasma – Mass Spectrometry (sp ICP-MS) technique in the study of nanomaterials, this work reports on the use of sp ICP-MS along with an online dilution sample introduction system for the direct analysis of untreated and spiked seawater samples, as part of a larger scale experiment studying the fate of Ag (ionic and nanoparticles) in seawater mesocosm systems. Silver nanoparticles coated with branched polyethyleneimine (BPEI@AgNPs) or ionic silver (Ag+) were introduced gradually into the seawater mesocosm tanks at very low, environmentally relevant concentrations (50 ng Ag L− 1 per day, for 10 consecutive days, up to a total of 500 ng Ag L− 1 ), and samples were collected and analyzed daily, within a consistent time window. Using very low detector dwell time (75 μs) and specialized data treatment, information was obtained on the nanoparticles’ size distribution and particle number concentration, as well as the ionic silver content, of both the AgNPs and the Ag+ treated seawater mesocosm tanks. The results for the AgNP treated samples indicated the rapid degradation of the added silver particles, and the subsequent increase of ionic silver, with recoveries close to 100% for the first days of the experiment. On the other hand, particle formation was observed in the Ag+ treated seawater tanks, and even though the number concentration of silver-containing nanoparticles increased throughout the experiment, the amount of silver per particle remained relatively constant from the early days of the experiment. In addition, the online dilution sample introduction system for the ICP-MS proved capable of handling the untreated seawater matrix without significant contamination issues and downtime, while the low dwell time and data treatment procedure developed were shown to be suitable for the analysis of nanomaterials at the low nm-scale, despite the complex and heavy matrix introduced into the ICP-MS.</abstract>
    <parentTitle language="eng">Chemosphere</parentTitle>
    <identifier type="doi">10.1016/j.chemosphere.2023.139109</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">03.07.2023</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>Michail Ioannis Chronakis</author>
    <author>E. Mavrakis</author>
    <author>R. Alvarez-Fernandez García</author>
    <author>M. Montes-Bayon</author>
    <author>J. Bettmer</author>
    <author>P. Pitta</author>
    <author>M. Tsapakis</author>
    <author>I. Kalantzi</author>
    <author>A. Tsiola</author>
    <author>S. An. Pergantis</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mesocosm</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Single-particle</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Seawater</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>56026</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>poster</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">The Fate of the Antibiotic Amoxicillin in the Aquatic Environment</title>
    <abstract language="eng">Contamination of the environment with antibiotics is of great concern as it promotes the evolution of antimicrobial resistances. In case of amoxicillin (AMX) in the aquatic environment, further risk arises from hydrolysis products (HPs) which can cause allergy. To assess these risks, a comprehensive investigation and understanding of the degradation of AMX is necessary. We investigated the hydrolysis rate of AMX in different types of water as well as the influence of temperature and irradiation. The content of the heavy metal ions copper and zinc was found to be crucial for the hydrolysis rate of AMX and stability of HPs. Eventually, a new degradation pathway for AMX could be elaborated and confirmed by tandem mass spectrometry (LC-MS/MS).</abstract>
    <enrichment key="eventName">Berliner Chemie in Praxis Symposium</enrichment>
    <enrichment key="eventPlace">Berlin, Germany</enrichment>
    <enrichment key="eventStart">07.10.2022</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>Alexander Ecke</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hydrolysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Amoxicillin</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LC-MS/MS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ICP-MS</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="institutes" number="">1.8 Umweltanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Umwelt-Material-Interaktionen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>59156</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>lecture</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
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    <title language="eng">Closing the PFAS gap – comparative study of sum parameter, non-target and target approaches</title>
    <abstract language="eng">Analytical Approaches for PFAS Analysis in the environment.</abstract>
    <enrichment key="eventName">ICOBTE &amp; ICHMET 2023</enrichment>
    <enrichment key="eventPlace">Wuppertal, Germany</enrichment>
    <enrichment key="eventStart">08.09.2023</enrichment>
    <enrichment key="opus.source">publish</enrichment>
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    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HR-CS-GFMAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LC-HRMS</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
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  </doc>
  <doc>
    <id>59157</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
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    <title language="eng">Analytical Approaches for PFAS Sum-parameter Analysis – from Materials to Environment</title>
    <abstract language="eng">PFAS analysis in environmental samples via complementary analytical apporaches.</abstract>
    <enrichment key="eventName">16th Rio Symposium on Atomic Spectrometry</enrichment>
    <enrichment key="eventPlace">Bento Goncalves, Brazil</enrichment>
    <enrichment key="eventStart">29.11.2023</enrichment>
    <enrichment key="opus.source">publish</enrichment>
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    <author>Björn Meermann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HR-CS-GFMAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LC-HRMS</value>
    </subject>
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  </doc>
  <doc>
    <id>59890</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
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    <title language="eng">Development of multi-layer SPE approaches for PFAS determination in surface water samples utilizing HR-CS-GFMAS</title>
    <abstract language="eng">Per- and polyfluoroalkyl substances (PFAS) have received global public attention because of their wide distribution in aquatic environments and potential adverse effects to humans and wildlife. Due to the lack of analytical standards and the enormous numbers of these compounds, current target-based methods (e.g., LC-MS/MS) are not suitable for the analysis of new/unknown PFAS and transformation products. Therefore, PFAS sum parameter analysis is becoming increasingly important. For PFAS determination of surface waters, solid phase extraction (SPE) is commonly implemented for clean-up and pre-concentration of samples.&#13;
Thus, within this work, single-layer SPE methods (based on Strata™-X, Strata™-X-AW, Strata™-NH2 and Oasis-HLB) were investigated for maximum PFAS coverage utilizing extractable organically bound fluorine (EOF) analysis. Thereby, the optimization procedure relied on the analysis of 3 surface water samples in Berlin, Germany, which were affected by the effluent discharge of wastewater treatment plants. To analyse the SPE elution profiles for EOF and inorganic fluorine, high resolution-continuum source-graphite furnace molecular absorption spectroscopy (HR-CS-GFMAS) and ion chromatography (IC) were used, respectively.&#13;
Highest EOF concentrations were achieved by using Strata-X/Strata-XAW as SPE sorbents and methanol as eluent. Furthermore, combinations of the most promising SPE sorbents were selected (X/XAW, XAW/X, HLB/X and WAX/GCB) to extract a wider range of PFASs. By comparing multi-layer SPE methods, lower EOF concentrations were obtained for all investigated combination phases compared to the analysed single phases. For the commercially available combination phase Strata-PFAS (WAX/GCB) for all three river water samples, lower EOF concentrations (1.5 times lower) were determined compared to Strata-X.&#13;
The results have shown that single-layer SPE systems are currently superior compared to combination phases for PFAS sum parameter analysis. The multi-layer SPE methods need further optimization regarding appropriate sorbent combinations, loading volumes and elution conditions. The developed single-layer SPE methods can help to elucidate pollutions hotspots and discharge routes.</abstract>
    <enrichment key="eventName">Analytica Conference 2024</enrichment>
    <enrichment key="eventPlace">Munich, Germany</enrichment>
    <enrichment key="eventStart">09.04.2024</enrichment>
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    <author>Fabian Simon</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HR-CS-GFMAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluorine</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SPE</value>
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  <doc>
    <id>59892</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
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    <title language="eng">Evaluation of novel adsorber materials for environmentally relevant perfluorinated compounds</title>
    <abstract language="eng">PFAS (Per- and polyfluoroalkyl substances) are a widespread and emerging environmental problem due to their longevity and ubiquitous spread. The common structural motif of this compound class is the fluorine – carbon bond on an alkyl backbone, which are known for their chemical inertness and combination of hydrophobicity and oleophobicity. The downside of those properties is the general lack of usable molecular interactions for adsorption to extract them from the environment. The notable exception to that inertness are fluorine – fluorine interactions, which are stronger, the longer the perfluorinated chain length is. Therefore, in this project we investigated the effect of fluorination, length and presence of a charge on the alkyl chain on an adsorber. Towards that goal, in total 16 different adsorber materials were synthesized (fluorinated/non-fluorinated; C4/ C6/ C8/ C10 ; positive charge/no charge) and tested in regard to their potential to adsorb PFOA and perfluoralkylic acids of differing chain lengths. The PFAS concentration was tested via LC-MS/MS to determine the adsorption rate on the various materials. Further work includes the transition from a target analytics to sum parameter analysis for future evaluation of adsorber materials in PFAS environmental samples like river samples. Therefore a quarterly sampling and extraction of spree surface water samples was planned.</abstract>
    <enrichment key="eventName">SFB 1349 Winter School 2024</enrichment>
    <enrichment key="eventPlace">Międzyzdroje, Poland</enrichment>
    <enrichment key="eventStart">10.04.2024</enrichment>
    <enrichment key="eventEnd">12.04.2024</enrichment>
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    <author>Cafer-Can Kaplan</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Adsorber</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluoruos Systems</value>
    </subject>
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  </doc>
  <doc>
    <id>59895</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
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    <title language="eng">Speciation analysis of environmental samples via ETV/ICP-MS</title>
    <abstract language="eng">Organotin compounds (OTCs) have been widely used in anti-fouling paints, pesticide formulations, and as stabilizers in polyvinyl chloride over the past century. In marine ecosystems, OTCs can cause severe damage to biodiversity, leading up to the extinction of vulnerable species. Due to the extensive use of tributyltin (TBT) as a biocide on ship hulls, it has been considered one of the most hazardous substances intentionally introduced into the aquatic environment. This resulted in a global ban on TBT-containing products in the 2000s. However, recent studies indicate the emerging presence of organotin pollutants.&#13;
     OTCs are known to persist and accumulate in marine sediments, posing a long-term threat to the environment. These harmful substances can be set free and dispersed even after several decades. Therefore, analyzing sediment probes is imperative for a thorough monitoring of pollution. However, species-specific analysis of OTCs at required concentration levels in complex environmental matrices remains challenging. Chromatographic systems are commonly used for their analysis, but the required sample preparation is time-consuming and prone to contamination and analyte loss. The coupling of electrothermal vaporization and inductively coupled plasma-mass spectrometry (ETV/ICP-MS) demonstrates high potential as a rapid, convenient, and chemical-saving scanning tool for environmental samples. &#13;
     This method enables the direct on-line fractionation of organic compounds from an inorganic fraction and provides element-specific detection at ultra-trace levels without complex sample preparation. Since OTCs are generally more toxic than ionic or elemental tin, analyzing them as a sum parameter is advantageous. Additionally, the determination of both organic and inorganic tin, rather than just organic tin, reveals valuable information about the fate of OTCs. The main challenge in obtaining accurate quantitative data using direct solid sampling techniques like as ETV/ICP-MS is applying a suitable calibration strategy. Our isotope dilution approach overcomes matrix effects in ETV/ICP-MS analysis and is compatible with commercial systems.</abstract>
    <enrichment key="eventName">Winter Conference on Plasma Spectrochemistry</enrichment>
    <enrichment key="eventPlace">Tucson, AZ, USA</enrichment>
    <enrichment key="eventStart">15.01.2024</enrichment>
    <enrichment key="eventEnd">20.01.2024</enrichment>
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    <author>Vera Scharek</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Organotin compounds</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sediment</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electrothermal Vaporization</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Inductively coupled plasma-mass spectrometry</value>
    </subject>
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  </doc>
  <doc>
    <id>58939</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>13</pageLast>
    <pageNumber/>
    <edition/>
    <issue>104</issue>
    <volume>35</volume>
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    <publisherName>Springer Science and Business Media LLC</publisherName>
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    <title language="eng">Investigating the uptake and fate of per- and polyfluoroalkylated substances (PFAS) in bean plants (Phaseolus vulgaris): comparison between target MS and sum parameter analysis via HR-CS-GFMAS</title>
    <abstract language="eng">AbstractIn this study, we present a screening method based on molecular absorption spectrometry to study PFAS uptake and fate in plants. To evaluate the suitability of this method we analyzed plant extracts with molecular absorption spectrometry (MAS) as well as liquid chromatography–tandem mass spectrometry (LC–MS/MS) for mass balance studies (w(F)). French bean plants (Phaseolus vulgaris) were grown on soil spiked using eight PFAS substances that vary in chain length and functional group composition. Specifically, these include three short-chained (C4–C5), five long-chained (C7–C10) carboxylic acids, one sulfonic acid and one sulfonic amide moieties. To investigate substance-specific PFAS uptake systematically, PFAS were spiked as single substance spike. Additionally, we studied one mixture of the investigated substances in equal proportions regarding w(F) and four PFAS mixtures of unknown composition. After 6 weeks, the plants were separated into four compartments. We analyzed the four compartments as well as the soil for extractable organically bound fluorine (EOF) by high resolution-continuum source-graphite furnace-molecular absorption spectrometry (HR-CS-GFMAS) as well as for sum of ten target-PFAS by LC–MS/MS. All three short-chained PFAS perfluorobutanoic acid (PFBA), perfluorobutanoic sulfonic acid (PFBS) and perfluoropentanoic acid (PFPeA) were determined in high concentrations mainly in the fruits of the investigated plants while long-chained PFAS perfluorononanoic acid (PFNA) and perfluorodecanoic acid (PFDA) were mainly determined in roots. PFBS was determined in remarkably high concentrations in leaves compartment by both quantification methods. Overall, comprehensive results of single substance spikes were in good agreement for both methods except for a few cases. Hence, two phenomena were identified: for mixed PFAS spikes of unknown composition huge differences between EOF and sum of target PFAS were observed with systematically higher EOF values. Overall, both methods indicate comparable results with MS being more reliable for known PFAS contamination and MAS being more valuable to identify PFAS exposure of unknown composition.&#13;
 Graphical Abstract</abstract>
    <parentTitle language="eng">Environmental Sciences Europe</parentTitle>
    <identifier type="doi">10.1186/s12302-023-00811-7</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-589394</identifier>
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To evaluate the suitability of this method we analyzed plant extracts with molecular absorption spectrometry (MAS) as well as liquid chromatography\u2013tandem mass spectrometry (LC\u2013MS\/MS) for mass balance studies (&lt;jats:italic&gt;w&lt;\/jats:italic&gt;(&lt;jats:italic&gt;F&lt;\/jats:italic&gt;)). French bean plants (&lt;jats:italic&gt;Phaseolus vulgaris&lt;\/jats:italic&gt;) were grown on soil spiked using eight PFAS substances that vary in chain length and functional group composition. Specifically, these include three short-chained (C4\u2013C5), five long-chained (C7\u2013C10) carboxylic acids, one sulfonic acid and one sulfonic amide moieties. To investigate substance-specific PFAS uptake systematically, PFAS were spiked as single substance spike. 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Overall, both methods indicate comparable results with MS being more reliable for known PFAS contamination and MAS being more valuable to identify PFAS exposure of unknown composition.&lt;\/jats:p&gt;\n                &lt;jats:p&gt;&lt;jats:bold&gt;Graphical Abstract&lt;\/jats:bold&gt;&lt;\/jats:p&gt;","DOI":"10.1186\/s12302-023-00811-7","type":"journal-article","created":{"date-parts":[[2023,11,21]],"date-time":"2023-11-21T20:03:11Z","timestamp":1700596991000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Investigating the uptake and fate of per- and polyfluoroalkylated substances (PFAS) in bean plants (Phaseolus vulgaris): comparison between target MS and sum parameter analysis via HR-CS-GFMAS"],"prefix":"10.1186","volume":"35","author":[{"given":"Lennart","family":"Gehrenkemper","sequence":"first","affiliation":[]},{"given":"Isabel","family":"R\u00fchl","sequence":"additional","affiliation":[]},{"given":"Tanja","family":"Westphalen","sequence":"additional","affiliation":[]},{"given":"Fabian","family":"Simon","sequence":"additional","affiliation":[]},{"given":"Marcus","family":"von der Au","sequence":"additional","affiliation":[]},{"given":"Antje","family":"Cossmer","sequence":"additional","affiliation":[]},{"given":"Bj\u00f6rn","family":"Meermann","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2023,11,21]]},"reference":[{"key":"811_CR1","unstructured":"OECD. Toward a new comprehensive global database of per- and polyfluoroalkyl substances (PFASs). In: OECD environment, health and safety publications series on risk management, No. 39, Paris; 2018."},{"key":"811_CR2","unstructured":"EPA. CompTox Chemicals Dashboard; 2022. https:\/\/comptox.epa.gov\/dashboard\/chemical-lists\/PFASSTRUCT. Accessed 6 Jan 2023."},{"key":"811_CR3","unstructured":"OECD. Reconciling terminology of the universe of per- and polyfluoroalkyl substances: recommendations and practical guidance. OECD environment, health and safety publications series on risk management No 61 (ENV\/CBC\/MONO(2021)25); 2021."},{"issue":"9","key":"811_CR4","first-page":"6223","volume":"18","author":"D Schrenk","year":"2020","unstructured":"Schrenk D, Bignami M, Bodin L, Chipman JK, del Mazo J, Grasl-Kraupp B et al (2020) Risk to human health related to the presence of perfluoroalkyl substances in food. 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    <author>Lennart Gehrenkemper</author>
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    <title language="eng">Water pollution risks by smoldering fires in degraded peatlands</title>
    <abstract language="eng">Climate change may increase the overall susceptibility of peatlands to fire. Smoldering fires in peatlands can cause substantial emissions of greenhouse gases. It is, however, less clear how smoldering affects the soil pore water quality. In this study, soil samples were collected from agricultural fen and disturbed bog study sites in Germany and Lithuania to quantify the effect of peat burning on pore water composition. The samples were air dried and smoldered under ignition temperature (approximately 200 °C) with different durations (0, 2, 5, and 10 h). Pore water samples were extracted from the soil to determine dissolved organic carbon (DOC) concentrations, dissolved organic matter (DOM) fractions, fluoride, extractable organically bound fluorine (EOF), and sulfate concentrations. The results showed that soil smoldering changes the peat pore water chemistry and that changes differ between fens and bogs. The smoldering duration is likewise influential. For fen grasslands, 2 and 5 h of smoldering of peat caused a &gt;10-fold increase in DOC (up to 1600 mg L−1) and EOF concentrations. The fluoride (up to 60 mg L−1) and sulfate concentrations substantially exceededWHOdrinking water guidelines. In contrast, the temperature treatment decreased theDOC concentrations of samples from raised bogs by 90 %. The fluoride concentrations decreased, but sulfate concentrations increased after smoldering of the bog samples. DOC, fluoride, and sulfate concentrations of bogs varied significantly between the smoldering duration treatments. For all peat samples, the extracted DOMwas dominated by humic-like substances before smoldering, but the fraction of low molecular weight substances increased after smoldering combustion. In conclusion, smoldering alters the biogeochemical processes in both peatland types and possibly impair the water quality of adjacent water resources especially in fen peat landscapes.</abstract>
    <parentTitle language="eng">Science of the Total Environment</parentTitle>
    <identifier type="doi">10.1016/j.scitotenv.2023.161979</identifier>
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    <author>H. Liu</author>
    <author>D. Zak</author>
    <author>N. Zableckis</author>
    <author>Antje Cossmer</author>
    <author>Nicole Langhammer</author>
    <author>Björn Meermann</author>
    <author>B. Lennartz</author>
    <subject>
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      <value>Smoldering fires</value>
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      <value>Fluoride</value>
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    <subject>
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      <value>Peatlands</value>
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      <value>HR-CS-GFMAS</value>
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    <subject>
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      <value>Pore water quality</value>
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    <title language="eng">Single cell ICP-ToF-MS as a powerful tool in environmental and material research</title>
    <abstract language="eng">Materials are key for our modern communities. In particular metals play important roles in all areas of our daily life - from building materials to high tech products.&#13;
Due to the increasing consumption of metals and corresponding waste production, an elevated release into the environment takes place. Furthermore, metals in direct contact with the environment undergo corrosion leading to a release into the (aquatic) environment. Thus, lifespan of products/buildings are substantially reduced – hence unnecessary economic costs arise. Thus, research in this regard is needed within the force field of metal/material - environment.&#13;
Evaluating the environmental impact of materials as well as developing “safe” materials, new analytical methods are highly needed. One promising powerful tool is single cell-ICP-ToF-MS for multi-elemental analysis on a single cell/organism level.&#13;
Within this presentation the concept, strength as well as challenge of single cell-ICP-MS are briefly introduced. Two application examples are presented: (i) assessing the environmental impact of metals and (ii) the impact of the environment on metal-based materials and the derivation of potential environmental-friendly material protection strategies. These applications highlight the strength of new analytical approaches to explore the durability and safety of newly developed materials. Thus, analytical chemistry is one corner stone to transformation of modern society into circular economy (CEco).&#13;
(i) Diatoms are located at the bottom of the food chain. Thus, toxicological relevant metals taken up by diatoms possibly accumulate within the food web causing harmful effects. Diatoms are common test system in ecotoxicology. To investigate potential metal uptake and effects, we developed an on-line single cell-ICP-ToF-MS approach for multi-elemental diatom analysis. Our approach is a new potential tool in ecotoxicological testing for metal-based materials.&#13;
(ii) Next to classical corrosion processes, microorganisms are responsible for so called microbially influenced corrosion (MIC). MIC is a highly unpredictable process relying on interaction pathways between cells and the metal surface. Sheding light on MIC processes and derivate potential protection strategies, we applied single cell-ICP-ToF-MS for MIC research on a single bacteria/archaea level. It turned out that microorganism are taking up particular metals from alloys - thus, single bacteria-ICP-ToF-MS will enable development of corrosion protection strategies.</abstract>
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    <author>Björn Meermann</author>
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      <value>Single cell-ICP-ToF-MS</value>
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    <subject>
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      <value>Algae</value>
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    <subject>
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    <title language="eng">Can Qualitative Nontarget Data Be Indicative of PFAS Contamination? First Evidence by Correlation with EOF in Environmental Samples</title>
    <abstract language="eng">We correlated nontarget screening (NTS) features and extractable organic fluorine (EOF) data for PFAS analysis in environmental samples. Soils, sediments, and ashes from different locations (Germany, France, and Lithuania) (n = 34) were analyzed via liquid chromatography-high-resolution mass spectrometry and high-resolution continuum source-graphite furnace molecular absorption spectrometry. NTS feature prioritization based on mass to carbon (m/C) and mass defect to carbon (MD/C) ratios was applied to discriminate potential PFAS features from common co-extracted organic matrix. Our results show a high correlation between quantitative EOF and the prioritized feature number (R2 = 0.87; rPearson = 0.93) and the total peak area of&#13;
prioritized features (R2 = 0.97; rPearson = 0.98), while commonly applied MD ranges for filtering showed much weaker correlation with EOF. The observed correlations in PFAS-contaminated samples highlight that MD/C−m/C prioritization is associated with a good indication of the overall PFAS burden as evidenced by EOF. Also, semiquantitative data can be extracted as shown by EOF versus prioritized peak areas. The correlations indicate that weakly fluorinated compounds were negligible and that the EOF was mostly composed of highly fluorinated substances. Our method features the potential to automatically screen large NTS data sets for potential PFAS, determine the contribution of PFAS to EOF, and provide preliminary estimates of the overall PFAS burden.</abstract>
    <parentTitle language="eng">Environmental Science &amp; Technology Letters</parentTitle>
    <identifier type="doi">10.1021/acs.estlett.4c00442</identifier>
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    <author>Jonathan Zweigle</author>
    <author>Fabian Simon</author>
    <author>Björn Meermann</author>
    <author>Christian Zwiener</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PFAS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Non-target Screening</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sum parameter</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Umwelt-Material-Interaktionen</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
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    <id>56124</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>136921</pageFirst>
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    <edition/>
    <issue/>
    <volume>311</volume>
    <type>article</type>
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    <title language="eng">Factors affecting the hydrolysis of the antibiotic amoxicillin in the aquatic environment</title>
    <abstract language="eng">The environmental fate of the frequently used broad-spectrum β-lactam antibiotic amoxicillin (AMX) is of high concern regarding the potential evolution of antimicrobial resistance (AMR). Moreover, it is known that AMX is prone to hydrolysis, yielding a variety of hydrolysis products (HPs) with yet unknown effects. Studies to identify those HPs and investigate their formation mechanisms have been reported but a long-term study on their stability in real water samples was missing. In this regard, we investigated the hydrolysis of AMX at two concentration levels in four distinct water types under three different storage conditions over two months. Concentrations of AMX and four relevant HPs were monitored by an LC-MS/MS method revealing pronounced differences in the hydrolysis rate of AMX in tap water and mineral water on the one hand (fast) and surface water on the other(slow). In this context, the occurrence, relative intensities, and stability of certain HPs are more dependent on the water type than on the storage condition. As clarified by ICP-MS, the main difference between the water types was the content of the metals copper and zinc which are supposed to catalyze AMX hydrolysis demonstrating an effective method to degrade AMX at ambient conditions.</abstract>
    <parentTitle language="eng">Chemosphere</parentTitle>
    <identifier type="issn">0045-6535</identifier>
    <identifier type="doi">10.1016/j.chemosphere.2022.136921</identifier>
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    <enrichment key="date_peer_review">31.10.2022</enrichment>
    <enrichment key="PaperofMonth">1</enrichment>
    <author>Alexander Ecke</author>
    <author>Tanja Westphalen</author>
    <author>Anika Retzmann</author>
    <author>Rudolf Schneider</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>β-lactam</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Stability</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Degradation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hydrolysis products</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LC-MS/MS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ICP-MS</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="institutes" number="">1.8 Umweltanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Umwelt-Material-Interaktionen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
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    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
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    <language>eng</language>
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    <title language="eng">Metrology for the recycling of Technology Critical Elements to support Europe´s circular economy agenda</title>
    <abstract language="eng">Problem: Lack of knowledge about TCE stocks and flows in urban mines. TCE analysis is hindered by extreme heterogeneity of the waste and a lack of suitable CRMs. Analytical procedures providing SI traceable results are not available.&#13;
&#13;
Solution: To enable comparability of analytical results and thus finally allow the improved recycling procedures, sampling strategies, analytical procedures, enabling SI traceable values and CRMs for TCE to be developed.</abstract>
    <enrichment key="eventName">ICP-MS Anwendertreffen</enrichment>
    <enrichment key="eventPlace">Leoben, Austria</enrichment>
    <enrichment key="eventStart">05.09.2022</enrichment>
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    <author>Marcus Oelze</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Reference materials</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Circular economy</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
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    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>56550</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>9</pageLast>
    <pageNumber/>
    <edition/>
    <issue>114208</issue>
    <volume>184</volume>
    <type>article</type>
    <publisherName>Elsevier Ltd.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Characteristic regional differences in trace element pattern of 2014 German North Sea surface Wadden sediments – A judge and assessment</title>
    <abstract language="eng">The European Marine Strategy Framework Directive (MSFD) requires good ecological status of the marine environment. This also includes the Wadden Sea located in the southeastern part of the North Sea and its chemical status of sediments. Based on results from campaigns conducted in the 1980s, 32 surface sediment samples were taken in 2014 to check whether the sampling strategy required for characterizing the trace element content in sediments is representative and to determine the degree of pollution and potential changes over the last decades. For this purpose the elemental mass fractions of 42 elements were assessed in the ≤20 μm grain size fraction of the surface sediments.&#13;
Based on cluster analysis a clear correlation between the element distribution and the geographical location of the sampling locations of the German Wadden Sea could be found. As a result of the principal component analysis, three sub-catchments were significantly separated from each other by the characteristic element distributions in the sediments (Norderney and Weser, Elbe and offshore areas, and North Friesland). With the help of discriminant analysis, the classification was confirmed unambiguously. Small anomalies, such as potentially contaminated sites from WWII, could be identified. This proved that the sampling strategy for sediment characterization with reference to trace elements in the Wadden Sea of the German Bight is representative.&#13;
The impact of regulation and changes on the overall sediment quality is most evident when looking at the environmentally critical elements such as As, Cd, Hg, and Cr. For these elements the mean mass fractions show a significant reduction over the last three decades. Current sediments feature only slightly elevated mass fractions of Ag, Cd, Ce, Cs, Nd, Pb and Se at some sampling locations.</abstract>
    <parentTitle language="eng">Marine Pollution Bulletin</parentTitle>
    <identifier type="doi">10.1016/j.marpolbul.2022.114208</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">14.12.2022</enrichment>
    <author>Marcus von der Au</author>
    <author>T. Zimmermann</author>
    <author>U. Kleeberg</author>
    <author>W. von Tümpling</author>
    <author>D Pröfrock</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Wadden Sea</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Trace Elements</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>North Sea</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Statistics</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>61555</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>13</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>15</volume>
    <type>article</type>
    <publisherName>Springer Science and Business Media LLC</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Marine and terrestrial contributions to atmospheric deposition fluxes of methylated arsenic species</title>
    <abstract language="eng">Arsenic, a toxic element from both anthropogenic and natural sources, reaches surface environments through atmospheric cycling and dry and wet deposition. Biomethylation volatilizes arsenic into the atmosphere and deposition cycles it back to the surface, affecting soil-plant systems. Chemical speciation of deposited arsenic is important for understanding further processing in soils and bioavailability. However, the range of atmospheric transport and source signature of arsenic species remain understudied. Here we report significant levels ofmethylated arsenic in precipitation, cloudwater and aerosols collected under free tropospheric conditions at Pic du Midi Observatory (France) indicating long-range transport, which is crucial for atmospheric budgets. Through chemical analyses andmoisture source diagnostics, we identify terrestrial and marine sources for distinct arsenic species. Estimated atmospheric deposition fluxes of methylated arsenic are similar to reported methylation rates in soils, highlighting atmospheric deposition as a significant, overlooked source of potentially bioavailable methylated arsenic&#13;
species impacting plant uptake in soils.</abstract>
    <parentTitle language="eng">Nature Communications</parentTitle>
    <identifier type="doi">10.1038/s41467-024-53974-z</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-615551</identifier>
    <identifier type="issn">2041-1723</identifier>
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    <enrichment key="date_peer_review">24.02.2025</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Esther S. Breuninger</author>
    <author>Julie Tolu</author>
    <author>Franziska Aemisegger</author>
    <author>Iris Thurnherr</author>
    <author>Sylvain Bouchet</author>
    <author>Adrien Mestrot</author>
    <author>Rachele Ossola</author>
    <author>Kristopher McNeill</author>
    <author>Dariya Tukhmetova</author>
    <author>Jochen Vogl</author>
    <author>Björn Meermann</author>
    <author>Jeroen E. Sonke</author>
    <author>Lenny H. E. Winkel</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Arsenic</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Speciation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluxes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Marine</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Terrestrial</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sulfur isotopes</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Umwelt-Material-Interaktionen</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/61555/Breuninger-et-al_Atmospheric-fluxes-methylated-arsenic-species_Nature-comm-2024.pdf</file>
  </doc>
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    <id>61621</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
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    <type>lecture</type>
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    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
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    <title language="eng">Speciation Analysis of Organo-Tin in Environmental Samples via Electrothermal Vaporization/Inductively Coupled Plasma Mass Spectrometry</title>
    <abstract language="eng">Shipping plays a significant role in the global trade. However, it is negatively impacted by the unwanted accumulation of marine organisms on the ship hulls. To prevent the so-called bio-fouling, antifoulant paints containing the organometallic compound tributyltin (TBT) have been used on ship hulls since the 1960s. Compared to the generally considered non-toxic inorganic tin, the endocrine disruptor TBT leads to the endangerment of non-target organisms. The most prominent effects are imposex in snails and shell deformation in oysters. This resulted in a global ban by the International Maritime Organization in 2008. Nevertheless, recent studies have found alarmingly high concentrations in sediment.&#13;
&#13;
Organotin compounds (OTCs) are known to persist and accumulate in marine sediments, posing a long-term threat to the environment. Once released from the ship hull, TBT gets effectively absorbed into the sediment. Under anaerobic conditions and the absence of light, the half-life is extended up to several decades. The resuspension and transport of sediment remobilizes butyltin compounds, making them bioavailable even in distant regions. The monitoring of OTCs in sediment is inevitable to conduct a comprehensive risk assessment and a thorough monitoring of pollution. Conventionally, species-specific analysis of OTCs involves (gas-)chromatographic separation after extraction and pre-concentration of the analytes. However, the sample preparation is time-consuming, chemical-intensive, and prone to species-transformation, respectively incomplete extraction. In this context, electrothermal vaporization coupled with inductively coupled plasma-mass spectrometry (ETV/ICP-MS) shows high potential as a rapid and chemical-saving screening tool for OTCs in environmental samples.&#13;
&#13;
The main challenge for obtaining correct, quantitative data with direct solid sampling techniques like ETV/ICP-MS is the application of a suitable calibration strategy. In this context, a new quantification method based on on-line isotope dilution analysis has been developed and validated by a reference material with certified OTC content. Our approach overcomes matrix effects while being compatible with commercially available ETV systems. Using an optimized multi-step ETV temperature program, the full separation of OTCs, inorganic tin, and major matrix components could be achieved. Since its use as a screening tool, analyzing OTCs as a sum parameter is beneficial and can complement chromatographic approaches.</abstract>
    <enrichment key="eventName">European Symposium on Analytical Spectrometry (ESAS)</enrichment>
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    <author>Vera Scharek</author>
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      <language>eng</language>
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      <value>Organotin compounds</value>
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    <subject>
      <language>eng</language>
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      <value>Sediment</value>
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    <subject>
      <language>eng</language>
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      <value>Electrothermal Vaporization</value>
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    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Inductively coupled plasma-mass spectrometry</value>
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    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
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    <title language="eng">Screening for tin-based environmental Pollutants in Sediment via ETV/ICP-MS</title>
    <abstract language="eng">Shipping plays a significant role in the global trade. However, it is negatively impacted by the unwanted accumulation of marine organisms on the ship hulls. Antifoulant paints containing the organometallic compound tributyltin (TBT) have been used to prevent the so-called fouling on ship hulls since the 1960s. Compared to the generally considered non-toxic inorganic tin, the endocrine disruptor TBT affects the biological fitness of non-target organisms. The most prominent effects are imposex in snails and shell deformation in oysters. This resulted in a global ban by the International Maritime Organization in 2008, but recent studies have found alarmingly high concentrations in sediment.&#13;
Once TBT is released from the ship hull, it gets effectively absorbed into the sediment. Under anaerobic conditions and the absence of light, the half-life is extended up to several decades. The resuspension and transport of sediment remobilizes tin organic compounds (OTCs), making them bioavailable even in distant regions. To conduct a comprehensive risk assessment, it is necessary to monitor OTCs in sediment. Conventionally, species-specific analysis of OTCs involves (gas-)chromatographic separation after extraction and pre-concentration of the analytes. However, the sample preparation is time-consuming, chemical-intensive, and prone to species-transformation, respectively incomplete extraction. In this context, electrothermal vaporization coupled with inductively coupled plasma-mass spectrometry (ETV/ICP-MS) shows potential as a fast and automatable screening tool for OTCs in environmental samples.&#13;
In this study, an ETV/ICP-MS method for the speciation analysis of OTC in environmental samples has been developed. The method was validated by spiking experiments using an OTC-containing, respectively OTC-free certified reference material. With a single ETV temperature program, the full separation of OTCs, inorganic tin, and potentially interfering major matrix components were achieved in three different sediment matrices. Co-vaporization of the individual OTC species could be observed. However, when used as a screening tool for environmental monitoring sum parameter analysis of OTC is beneficial. In conclusion, ETV/ICP-MS, is a fast and convenient tool for monitoring metal-based pollutants at ppb level in the environment.</abstract>
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    <author>Vera Scharek</author>
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      <value>Organotin compounds</value>
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    <subject>
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      <type>uncontrolled</type>
      <value>Sediment</value>
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      <value>Electrothermal Vaporization</value>
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    <title language="eng">Advancing Stable and Long-lived Radiogenic Isotope Ratio Measurements of Environmental Pollutants</title>
    <abstract language="eng">The isotopic compositions of elements vary in the environment due to processes such as radioactive decay, cosmic ray spallation, mass-dependent and mass-independent fractionation, and different anthropogenic sources such as industrial activities, nuclear weapon testing, nuclear accidents, as well as natural phenomena long-range atmospheric and water transport, climate change, etc. Isotope ratio data obtained by mass spectrometry now plays an important role as tracers of a multitude of processes in Earth and environmental sciences. Inductively coupled plasma mass spectrometry (ICP-MS) is a widely used technique for detecting variations in isotopic abundances in e.g., environmental samples. Recent advancements in mass spectrometric instrumentation have significantly enhanced sensitivity and precision, enabling the reliable detection of even minute variations in the isotopic composition of most elements with more than one natural isotope. However, to fully realize these new capabilities, a significant analytical challenge remains due to a vast number of analyte/matrix combinations, concomitant matrix effects, spectral interferences, and instrumental isotopic fractionation that must be characterized before and during the measurements. Success in developing new and improved methods for stable and long-lived radiogenic isotope ratio measurements by mass spectrometric methods depends on improvements in the reduction and quantification of uncertainties associated with sample preparation, instrumentation, and external calibration. The goal of this presentation is to show the key findings of the European Partnership on Metrology project “Metrology for the harmonisation of measurements of environmental pollutants in Europe” - MetroPOEM (https://www.npl.co.uk/euramet/metropoem), with a focus on the ICP-MS techniques used for isotope ratio measurements. Several elements were used as model systems for the development and optimisation of sample preparation and measurement procedures, including Li, B, Cr, Cd, Ni, Sb, Pb, and U. Isotope ratios of these elements determined by multi-collector ICP-MS, sector field ICPMS, quadrupole ICP-MS, and ICP-MS/MS will be assessed and compared. Data on their performance will be presented and assessed in terms of accuracy and precision. Comprehensive uncertainty budgets for the determination of the isotope ratios of the selected elements by different calibration approaches will be presented. The presented results will highlight the potential of recent advances in ICP-MS technology.</abstract>
    <enrichment key="eventName">11th Nordic Conference on Plasma Spectrochemistry</enrichment>
    <enrichment key="eventPlace">Loen, Norway</enrichment>
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    <author>T. Zuliani</author>
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      <value>Isotope analysis</value>
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    <subject>
      <language>eng</language>
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      <value>ICP-MS</value>
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      <value>Measurement uncertainty</value>
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    <title language="eng">Perfluoroalkyl acid precursor or weakly fluorinated organic compound? A proof of concept for oxidative fractionation of PFAS and organofluorines</title>
    <abstract language="eng">Organofluorine mass balance approaches are increasingly applied to investigate the occurrence of per- and polyfluoroalkyl substances (PFAS) and other organofluorines in environmental samples more comprehensively. Usually, complex samples prevent the identification and quantification of every fluorine-containing molecule. Consequently, large unidentified fractions between fluorine sum parameters such as extractable organic fluorine (EOF) and the sum of quantified analytes are frequently reported. We propose using oxidative conversion to separate (unidentified) weakly fluorinated compounds (e.g., pesticides, pharmaceuticals) from PFAA-precursors (perfluoroalkyl chain lengths ≥ C6). We show with three organofluorine model substances (flufenamic acid, diflufenican, pantoprazole) that CF3-groups or aromatic fluorine can be quantitatively converted to inorganic fluoride and trifluoroacetic acid (TFA) by applying PhotoTOP oxidation (UV/TiO2). The principle of fluorine separation in mixtures is demonstrated by the oxidation of the three weakly fluorinated compounds together with the PFAA-precursor 6:2/6:2 fluorotelomer mercaptoalkyl phosphate diester (FTMAP). After oxidation, the products F− and TFA were separated from PFCAs ( C4) by SPE, and the fractions were analyzed individually. Closed mass balances both with and without the addition of organic matrix were achieved. Eventually, the fluorine balance was verified by total fluorine measurements with combustion ion chromatography (CIC). The proposed methods should be considered a proof of concept to potentially explain unidentified fractions of the EOF, especially if compounds with low fluorine content such as pesticides, pharmaceuticals, and their transformation products contribute largely to the EOF. Future studies are needed to show the applicability to the complexity of environmental samples.&#13;
 Graphical Abstract</abstract>
    <parentTitle language="eng">Analytical and Bioanalytical Chemistry</parentTitle>
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Usually, complex samples prevent the identification and quantification of every fluorine-containing molecule. Consequently, large unidentified fractions between fluorine sum parameters such as extractable organic fluorine (EOF) and the sum of quantified analytes are frequently reported. We propose using oxidative conversion to separate (unidentified) weakly fluorinated compounds (e.g., pesticides, pharmaceuticals) from PFAA-precursors (perfluoroalkyl chain lengths\u2009\u2265\u2009C&lt;jats:sub&gt;6&lt;\/jats:sub&gt;). We show with three organofluorine model substances (flufenamic acid, diflufenican, pantoprazole) that CF&lt;jats:sub&gt;3&lt;\/jats:sub&gt;-groups or aromatic fluorine can be quantitatively converted to inorganic fluoride and trifluoroacetic acid (TFA) by applying PhotoTOP oxidation (UV\/TiO&lt;jats:sub&gt;2&lt;\/jats:sub&gt;). 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    <author>J. Zweigle</author>
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    <title language="eng">Development and application of reference and routine analytical methods providing SI-traceable results for the determination of technology-critical elements in PCB from WEEE</title>
    <abstract language="eng">The recovery and reprocessing of technology-critical elements (TCE) present in printed circuit boards (PCB) from electrical and electronic waste is essential both for recycling valuable materials subject to supply risk and for reducing the environmental impact. Although the quantitative knowledge of TCE amounts in endof- life PCB plays a key role, there are neither matrix certified reference materials nor harmonized analytical methods available to establish the traceability of the results to the International System of Units. To fill these gaps, we developed and applied five reference analytical methods based on ICP-MS standard addition calibrations and INAA k0- and relative calibrations suitable to certify reference materials. In addition, we developed and tested six analytical methods based on more commonly used ICP-MS external standard calibrations to provide industry with routine analysis methods. Twenty TCE (Ag, Au, Co, Cu, Dy, Ga, Gd, Ge, In, La, Li, Nd, Ni, Pd, Pr, Pt, Rh, Sm, Ta and Ti) were selected as target analytes and a batch of powdered PCB was used as measurement material. An overall mutual agreement was observed among data collected by reference methods at a few percent relative uncertainty levels. Moreover, all but one of the methods developed for routine analysis demonstrated their suitability in industrial applications by producing data within ± 20% of the values established with reference methods.</abstract>
    <parentTitle language="eng">Journal of Analytical Atomic Spectrometry</parentTitle>
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    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Giancarlo D'Agostino</author>
    <author>Marcus Oelze</author>
    <author>Jochen Vogl</author>
    <author>Jean-Philippe Ghestem</author>
    <author>Nicolas Lafaurie</author>
    <author>Ole Klein</author>
    <author>Daniel Pröfrock</author>
    <author>Marco Di Luzio</author>
    <author>Luigi Bergamaschi</author>
    <author>Radojko Jaćimović</author>
    <author>Caroline Oster</author>
    <author>Johanna Irrgeher</author>
    <author>Shaun T. Lancaster</author>
    <author>Anna Walch</author>
    <author>Anita Röthke</author>
    <author>Lena Michaliszyn</author>
    <author>Axel Pramann</author>
    <author>Olaf Rienitz</author>
    <author>Timo Sara-Aho</author>
    <author>Oktay Cankur</author>
    <author>Derya Kutan</author>
    <author>Johanna Noireaux</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Technology critical elements</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electronic waste</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Printed circuit boards</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Traceability</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Uncertainty</value>
    </subject>
    <collection role="ddc" number="628">Sanitär- und Kommunaltechnik; Umwelttechnik</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.1 Anorganische Spurenanalytik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="themenfelder" number="">Circular Economy</collection>
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    <language>eng</language>
    <pageFirst>496</pageFirst>
    <pageLast>505</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>190</volume>
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    <title language="eng">Evaluation of X-ray fluorescence for analysing critical elements in three electronic waste matrices: A comprehensive comparison of analytical techniques</title>
    <abstract language="eng">As the drive towards recycling electronic waste increases, demand for rapid and reliable analytical methodology to analyse the metal content of the waste is increasing, e.g. to assess the value of the waste and to decide the correct recycling routes. Here, we comprehensively assess the suitability of different x-ray fluorescence spectroscopy (XRF)-based techniques as rapid analytical tools for the determination of critical raw materials, such as Al, Ti, Mn, Fe, Co, Ni, Cu, Zn, Nb, Pd and Au, in three electronic waste matrices: printed circuit boards (PCB), light emitting diodes (LED), and lithium (Li)-ion batteries. As validated reference methods and materials to establish metrological traceability are lacking, several laboratories measured test samples of each matrix using XRF as well as other independent complementary techniques (instrumental neutron activation analysis (INAA), inductively coupled plasma mass spectrometry (ICP-MS) and ICP optical emission spectrometry (OES)) as an inter-laboratory comparison (ILC). Results highlighted key aspects of sample preparation, limits of detection, and spectral interferences that affect the reliability of XRF, while additionally highlighting that XRF can provide more reliable data for certain elements compared to digestion-based approaches followed by ICP-MS analysis (e.g. group 4 and 5 metals). A clear distinction was observed in data processing methodologies for wavelength&#13;
dispersive XRF, highlighting that considering the metals present as elements (rather than oxides) induces overestimations of the mass fractions when compared to other techniques. Eventually, the effect of sample particle size was studied and indicated that smaller particle size (&lt;200 μm) is essential for reliable determinations.</abstract>
    <parentTitle language="eng">Waste Management</parentTitle>
    <identifier type="doi">10.1016/j.wasman.2024.10.015</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-614060</identifier>
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    <title language="eng">Element Analytical Methods for a Sustainable Transformation of our Society</title>
    <abstract language="deu">Ressourcenknappheit benötigt alternative Strategien, um auch nachfolgenden Generationen eine lebenswerte Welt zu erhalten und einen guten Lebensstandard zu gewährleisten. Ein wesentlicher Beitrag hierzu wird die Transformation unserer Gesellschaft hin zu einer Kreislaufwirtschaft (CEco) sein. Bisher ist unsere Wirtschaft nicht dahingehend ausgelegt – ein wesentlicher Beitrag muss seitens der Analytischen Chemie kommen – nur hierüber können Qualitätsstandards und –kontrolle gewährleistet werden Im Rahmen meines eigeladenen Vortrags werden elementanalytisch Methoden, die in meinem Fachbereich entwickelt/angewendet werden, für eine CEco vorgestellt.</abstract>
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    <author>Björn Meermann</author>
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    <title language="eng">Discrete element and isotope analytical methods for a sustainable transformation of our society</title>
    <abstract language="deu">Ressourcenknappheit benötigt alternative Strategien, um auch nachfolgenden Generationen eine lebenswerte Welt zu erhalten und einen guten Lebensstandard zu gewährleisten. Ein wesentlicher Beitrag hierzu wird die Transformation unserer Gesellschaft hin zu einer Kreislaufwirtschaft (CEco) sein. Bisher ist unsere Wirtschaft nicht dahingehend ausgelegt – ein wesentlicher Beitrag muss seitens der Analytischen Chemie kommen – nur hierüber können Qualitätsstandards und –kontrolle gewährleistet werden. Im Rahmen meines eigeladenen Vortrags werden elementanalytisch Methoden, die in meinem Fachbereich entwickelt/angewendet werden, für eine CEco vorgestellt.</abstract>
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    <author>Björn Meermann</author>
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    <title language="deu">Was macht eigentlich der AK Meermann an der BAM in Berlin?</title>
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    <title language="eng">New adsorbent materials for PFAS</title>
    <abstract language="eng">PFAS are a growing area of concern, and there is a need for the development of new adsorbent materials for a variety of applications, including sample preparation in environmental analysis and the remediation of water resources from PFAS contamination.&#13;
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