<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>55680</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">Interlaboratory comparison for quantitative chlorine analysis in cement pastes with LIBS</title>
    <abstract language="eng">Concrete structures often show severe damage during their lifetime. One such damage is pitting corrosion of the steel reinforcement caused by chloride ingress into the porous concrete structure. Laser-induced breakdown spectroscopy (LIBS) is a promising method in civil engineering, which is used for detection of chlorine in concrete structures in addition to conventional methods of wet chemistry. To assess LIBS as a trustful analytical technique, its accuracy and robustness is carefully tested. The presentation will outline the results of the interlaboratory comparison of chlorine quantification in cement paste samples, which was carried out by 12 laboratories in 10 countries. Two sets of samples with chloride content ranging from 0.06-1.95 wt.% in the training set and 0.23-1.51 wt.% in the test sample set (“unknowns”), with additional variations in the type of cement and chlorine source (salt type) were sent to the laboratories. The overall result demonstrates that LIBS is suitable for the quantification of the investigated sample compositions: average relative bias was mostly below 15 %. Considering that the laboratories did not receive instructions on how to perform the analysis or how to process the data, the results can be evaluated as a true status quo of the LIBS technique for this type of analysis.</abstract>
    <enrichment key="eventName">XII Laser Induced Breakdown Spectroscopy (LIBS 2022)</enrichment>
    <enrichment key="eventPlace">Bari, Italy</enrichment>
    <enrichment key="eventStart">04.09.2022</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>Tobias Völker</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LIBS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chlorine</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cement pastes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Interlaboratory comparison</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.3 Instrumentelle Analytik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>55803</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>3</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <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">Importance of physical units in the Boltzmann plot method</title>
    <abstract language="eng">The Boltzmann plot is one of the most widely used methods for determining the temperature in different types of laboratory plasmas. It operates on the logarithm as a function of the dimensional argument, which assumes that the correct physical units are used. In many works using the Boltzmann method, there is no analysis of the dimension of this argument, which may be the cause of a potential error. This technical note offers a brief description of the method and shows how to correctly use physical units when using transcendental functions like the logarithm.</abstract>
    <parentTitle language="eng">Journal of Analytical Atomic Spectrometry</parentTitle>
    <identifier type="doi">10.1039/d2ja00241h</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-558039</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">05.10.2022</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Tobias Völker</author>
    <author>Igor B. Gornushkin</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Boltzmann plot</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Laser induced plasma</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.3 Instrumentelle Analytik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</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/55803/Units JAAS 2022.pdf</file>
  </doc>
  <doc>
    <id>58058</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>5</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>310</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Extension of the Boltzmann plot method for multiplet emission lines</title>
    <abstract language="eng">The Boltzmann plot method is widely used to determine the temperature of laser induced plasma. It involves the use of individual lines that are not easy to find in complex spectra and/or in the spectral range available. If the number of such lines is not enough to build a reliable Boltzmann plot, overlapping lines are often used, which are separated by software. However, line separation is a rather imprecise procedure, which, in addition, requires significant computational costs. This study proposes an extension of the Boltzmann plot method that allows a specific group of unresolved lines to be included in a Boltzmann plot without the need to separate them. This group of lines are multiplets, lines of the same element with similar upper and lower transition states. The multiplet lines along with the individual lines are included in the algorithm, which also includes a correction for self-absorption and is used to determine the plasma temperature. The algorithm is tested on synthetic spectra which are consistent with the model of a homogeneous isothermal plasma in local thermodynamic equilibrium and is shown to be superior to the standard Boltzmann plot method both in more accurate determination of the plasma temperature and in a significant reduction in the computational time. The advantages and disadvantages of the method are discussed in the context of its applications in laser induced breakdown spectroscopy.</abstract>
    <parentTitle language="eng">Journal of Quantitative Spectroscopy and Radiative Transfer</parentTitle>
    <identifier type="doi">10.1016/j.jqsrt.2023.108741</identifier>
    <identifier type="issn">1879-1352</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">13.11.2023</enrichment>
    <author>Tobias Völker</author>
    <author>Igor B. Gornushkin</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LIBS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Boltzmann plot</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Multiplet</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Spectral overlap</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.3 Instrumentelle Analytik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>57267</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>6</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>article</type>
    <publisherName>Royal Society of Chemistry (RSC)</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of a method for the correction of self-absorption by Planck function in laser induced breakdown spectroscopy</title>
    <abstract language="eng">The electron density and temperature of a laser-induced plasma can be determined from the width and intensity of the spectral lines, provided that the corresponding optical transitions are optically thin. However, the lines in laser induced plasma are often self-absorbed. One of the methods of correction of this effect is based on the use of the Planck function and an iterative numerical calculation of the plasma temperature. In this study, the method is further explored and its inherent errors and limitations are evaluated. For this, synthetic spectra are used that fully correspond to the assumed conditions of a homogeneous isothermal plasma at local thermodynamic equilibrium. Based on the error analysis, the advantages and disadvantages of the method are discussed in comparison with other methods of self-absorption correction.</abstract>
    <parentTitle language="eng">Journal of Analytical Atomic Spectrometry</parentTitle>
    <identifier type="doi">10.1039/D2JA00352J</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-572677</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">05.04.2023</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>Tobias Völker</author>
    <author>Igor B. Gornushkin</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LIBS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Self-absorption</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Planck function</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.3 Instrumentelle Analytik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</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/57267/LIBS_self-absorption_JAAS_2023.pdf</file>
  </doc>
  <doc>
    <id>57102</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>8</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>202</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Interlaboratory comparison for quantitative chlorine analysis in cement  pastes with laser induced breakdown spectroscopy</title>
    <abstract language="eng">Concrete structures experience severe damage during service, for example due to pitting corrosion of rebars caused by the ingress of chlorine (Cl) into the porous concrete structure. The ingress can be monitored using laser-induced breakdown spectroscopy (LIBS), a recently introduced civil engineering technique used to detect Cl in concrete structures in addition to conventional wet chemistry methods. The key advantages of LIBS are high spatial resolution, which is important when analyzing heterogeneous concrete samples, as well as the almost complete absence of sample preparation. To assess LIBS as a reliable analytical method, its accuracy and robustness must be carefully tested. This paper presents the results of an interlaboratory comparison on the analysis of Cl in cement paste samples conducted by 12 laboratories in 10 countries. Two sets of samples were prepared with Cl content ranging from 0.06 to 1.95 wt% in the training set and 0.23–1.51 wt% in the test set, with additional variations in the type of cement and Cl source (salt type). The overall result shows that LIBS is suitable for the quantification of the studied samples: the average relative error was generally below 15%. The results demonstrate the true status quo of the LIBS method for this type of analysis, given that the laboratories were not instructed on how to perform the analysis or how to process the data.</abstract>
    <parentTitle language="eng">Spectrochimica Acta Part B</parentTitle>
    <identifier type="doi">10.1016/j.sab.2023.106632</identifier>
    <identifier type="issn">0584-8547</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">19.06.2023</enrichment>
    <author>Tobias Völker</author>
    <author>Gerd Wilsch</author>
    <author>Igor B. Gornushkin</author>
    <author>L. Kratochvilo</author>
    <author>P. Pořízka</author>
    <author>J. Kaiser</author>
    <author>S. Millar</author>
    <author> et al.</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LIBS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Interlaboratory comparison</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Round robin test</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chlorine</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.3 Instrumentelle Analytik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>50381</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2111</pageFirst>
    <pageLast>2117</pageLast>
    <pageNumber/>
    <edition/>
    <issue>6</issue>
    <volume>145</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">Fibre optic ratiometric fluorescence pH sensor for monitoring corrosion in concrete</title>
    <abstract language="eng">In this communication a novel concept for pH sensing is introduced which is specifically adapted to monitor carbonation induced corrosion in concrete structures. The method is based on a ratiometric measurement principle, exploiting the pH sensitive colour switching of thymol blue in the basic pH regime and the emissive properties of two different (Zn)CdSe/ZnS core shell quantum dots. The transition point of thymol blue in a Hydrogel D4 matrix was determined to be at around pH 11.6, which fits ideally to the intended application. Next to the fundamental spectroscopic characterization of the ratiometric response, a new design for a sensor head, suitable for the incorporation into concrete matrices is presented. Toward this, a manufacturing process was developed which includes the preparation of a double layer of polymers containing either thymol blue or a quantum dot mixture inside a porous ceramic tube. Results of a proof-of-priciple performance test of the sensor head in solutions of different pH and in cement specimens are presented, with encouraging results paving the way for future field tests in concrete.</abstract>
    <parentTitle language="eng">Analyst</parentTitle>
    <identifier type="doi">10.1039/c9an02348h</identifier>
    <enrichment key="date_peer_review">12.02.2020</enrichment>
    <author>Jürgen Bartelmeß</author>
    <author>David Zimmek</author>
    <author>Matthias Bartholmai</author>
    <author>Christoph Strangfeld</author>
    <author>M. Schäferling</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fiber optic sensing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PH monitoring in concrete</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Embedded sensors</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ratiometric fluorescence</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.2 Biophotonik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.1 Sensorik, mess- und prüftechnische Verfahren</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>59861</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1030</pageFirst>
    <pageLast>1032</pageLast>
    <pageNumber/>
    <edition/>
    <issue>4</issue>
    <volume>39</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry (RSC)</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Mass and mole fractions in calibration-free LIBS</title>
    <abstract language="eng">This technical note highlights the fact that CF-LIBS algorithms work in mole fractions, while results of spectrochemical analysis are usually reported in mass fractions or mass percent. Ignoring this difference and not converting mole fractions to mass fractions can lead to errors in reported concentrations determined by the CF-LIBS method and inadequate comparison of these concentrations with certified concentrations. Here, the key points of the CF-LIBS algorithm are reproduced and the formulae for converting a mole fraction to a mass fraction and vice versa are given. Several numerical examples are also given, which show that the greater the difference between the molar mass of an individual element in a sample and the average molar mass, the greater the discrepancy between the mole and mass fractions.</abstract>
    <parentTitle language="eng">Journal of Analytical Atomic Spectrometry</parentTitle>
    <identifier type="doi">10.1039/d4ja00028e</identifier>
    <identifier type="issn">0267-9477</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-598611</identifier>
    <enrichment key="opus_doi_flag">true</enrichment>
    <enrichment key="opus_import_data">{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,4,4]],"date-time":"2024-04-04T00:48:10Z","timestamp":1712191690586},"reference-count":9,"publisher":"Royal Society of Chemistry (RSC)","issue":"4","license":[{"start":{"date-parts":[[2024,2,27]],"date-time":"2024-02-27T00:00:00Z","timestamp":1708992000000},"content-version":"vor","delay-in-days":57,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":["rsc.org"],"crossmark-restriction":true},"short-container-title":["J. Anal. At. Spectrom."],"abstract":"&lt;jats:p&gt;Importance of mole or mass fraction representations of concentrations in CF-LIBS.&lt;\/jats:p&gt;","DOI":"10.1039\/d4ja00028e","type":"journal-article","created":{"date-parts":[[2024,2,27]],"date-time":"2024-02-27T10:53:50Z","timestamp":1709031230000},"page":"1030-1032","update-policy":"http:\/\/dx.doi.org\/10.1039\/rsc_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Mass and mole fractions in calibration-free LIBS"],"prefix":"10.1039","volume":"39","author":[{"ORCID":"http:\/\/orcid.org\/0000-0002-9946-2963","authenticated-orcid":false,"given":"Tobias","family":"V\u00f6lker","sequence":"first","affiliation":[{"name":"Bundesanstalt f\u00fcr Materialforschung und \u2013pr\u00fcfung (BAM), Richard-Willst\u00e4tter-Stra\u00dfe 11, 12489, Berlin, Germany"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-9943-7848","authenticated-orcid":false,"given":"Igor B.","family":"Gornushkin","sequence":"additional","affiliation":[{"name":"Bundesanstalt f\u00fcr Materialforschung und \u2013pr\u00fcfung (BAM), Richard-Willst\u00e4tter-Stra\u00dfe 11, 12489, Berlin, Germany"}]}],"member":"292","published-online":{"date-parts":[[2024]]},"reference":[{"issue":"8","key":"D4JA00028E\/cit1\/1","doi-asserted-by":"publisher","first-page":"960","DOI":"10.1366\/0003702991947612","volume":"53","author":"Ciucci","year":"1999","journal-title":"Appl. Spectrosc."},{"issue":"12","key":"D4JA00028E\/cit2\/1","doi-asserted-by":"publisher","first-page":"1287","DOI":"10.1016\/j.sab.2007.10.005","volume":"62","author":"Tognoni","year":"2007","journal-title":"Spectrochim. Acta, Part B"},{"key":"D4JA00028E\/cit3\/1","doi-asserted-by":"publisher","first-page":"149","DOI":"10.1016\/j.sab.2018.06.011","volume":"147","author":"Gornushkin","year":"2018","journal-title":"Spectrochim. Acta, Part B"},{"issue":"1","key":"D4JA00028E\/cit4\/1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/j.sab.2009.11.006","volume":"65","author":"Tognoni","year":"2010","journal-title":"Spectrochim. Acta, Part B"},{"issue":"10","key":"D4JA00028E\/cit5\/1","doi-asserted-by":"publisher","first-page":"1972","DOI":"10.1039\/d2ja00241h","volume":"37","author":"V\u00f6lker","year":"2022","journal-title":"J. Anal. At. Spectrom."},{"key":"D4JA00028E\/cit6\/1","doi-asserted-by":"publisher","first-page":"120345","DOI":"10.1016\/j.conbuildmat.2020.120345","volume":"258","author":"V\u00f6lker","year":"2020","journal-title":"Constr. Build. Mater."},{"issue":"22","key":"D4JA00028E\/cit7\/1","doi-asserted-by":"publisher","first-page":"4843","DOI":"10.3390\/app9224843","volume":"9","author":"White","year":"2019","journal-title":"Appl. Sci."},{"key":"D4JA00028E\/cit8\/1","doi-asserted-by":"publisher","year":"2014","unstructured":"DIN EN 10088-1, Stainless Steels \u2013 Part 1: List of Stainless Steels,  2014 ,  10.31030\/2102106","DOI":"10.31030\/2102106"},{"issue":"2","key":"D4JA00028E\/cit9\/1","doi-asserted-by":"publisher","first-page":"249","DOI":"10.1016\/0022-3093(79)90053-x","volume":"33","author":"Lanford","year":"1979","journal-title":"J. Non-Cryst. Solids"}],"container-title":["Journal of Analytical Atomic Spectrometry"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/pubs.rsc.org\/en\/content\/articlepdf\/2024\/JA\/D4JA00028E","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,4,3]],"date-time":"2024-04-03T14:12:41Z","timestamp":1712153561000},"score":1,"resource":{"primary":{"URL":"https:\/\/xlink.rsc.org\/?DOI=D4JA00028E"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024]]},"references-count":9,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2024,4,3]]}},"URL":"http:\/\/dx.doi.org\/10.1039\/d4ja00028e","relation":{},"ISSN":["0267-9477","1364-5544"],"issn-type":[{"value":"0267-9477","type":"print"},{"value":"1364-5544","type":"electronic"}],"subject":["Spectroscopy","Analytical Chemistry"],"published":{"date-parts":[[2024]]}}}</enrichment>
    <enrichment key="local_crossrefDocumentType">journal-article</enrichment>
    <enrichment key="RelatedIdentifier">https://doi.org/10.1039/d4ja00028e</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">17.04.2024</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Tobias Völker</author>
    <author>Igor B. Gornushkin</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Analytical Chemistry</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LIBS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Calibration</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.3 Instrumentelle Analytik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</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/59861/d4ja00028e.pdf</file>
  </doc>
  <doc>
    <id>50319</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>105772</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>165</volume>
    <type>article</type>
    <publisherName>Elsevier B.V.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of grain sizes in cement-based materials and their influence on laser-induced plasmas by shadowgraphy and plasma imaging</title>
    <abstract language="eng">The effect of particle grain sizes in different cement-based mixtures on the laser-induced plasma evolution is studied using two experimental methods: (i) temporal and spatial evolution of the laser-induced shock wave is investigated using shadowgraphy and two-dimensional plasma imaging, and (ii) temporal and spatial distribution of elements in the plasma is investigated using two-dimensional spectral imaging. This study is motivated by the interest in applying laser-induced breakdown spectroscopy (LIBS) for chemical analysis of concrete, and subsequently obtain information related to damage assessment of structures like bridges and parking decks. The distribution of grain sizes is of major interest in civil engineering as for making concrete different aggregate grain sizes defined by a sieving curve (64mm to 0.125 mm) are needed. Aggregates up to a size of 180 μm can be excluded from the data set, therefore only the amount of small aggregates with a grain size below 180 μm must be considered with LIBS. All components of the concrete with a grain size smaller than 0.125mm are related to the flour grain content. Tested samples consisted of dry and hardened cement paste (water-cement ratio w/z=0.5), which served as a reference. Aggregate mixtures were made by adding flour grains (size 40 μm) and silica fume (size 0.1 μm) in different ratios to cement: 10%, 30%, 50% and 60%, all combined to the remaining percentage of dry or hydrated cement. The visualization results show that a dependance in the evolution of the plasma as a function of sample grain size can be detected only in the initial stages of the plasma formation, that is, at the initial 3 μs of the plasma life. Spectral information reveals the elemental distribution of the silicon and calcium in plasma, in both neutral and ionized form. Here also, a significant effect is observed in the first 1 μs of the plasma lifetime.</abstract>
    <parentTitle language="eng">Spectrochimica Acta Part B: Atomic Spectroscopy</parentTitle>
    <identifier type="doi">10.1016/j.sab.2020.105772</identifier>
    <enrichment key="date_peer_review">20.04.2020</enrichment>
    <author>Cassian Gottlieb</author>
    <author>Ardian Gojani</author>
    <author>Tobias Völker</author>
    <author>Tobias Günther</author>
    <author>Igor B. Gornushkin</author>
    <author>Gerd Wilsch</author>
    <author>Jens Günster</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>LIBS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cement-based materials</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Particle size</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Shadowgraphy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Plasma imaging</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.9 Chemische und optische Sensorik</collection>
    <collection role="institutes" number="">5 Werkstofftechnik</collection>
    <collection role="institutes" number="">5.4 Multimateriale Fertigungsprozesse</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.2 Zerstörungsfreie Prüfmethoden für das Bauwesen</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
</export-example>
