TY - RPRT A1 - Andrzejuk, W. A1 - Bau, A. A1 - Charoud-Got, J. A1 - de Vos, P. A1 - Emteborg, H. A1 - Lamberty, A. A1 - Linsinger, T. A1 - Oostra, A. A1 - Quetel, C. A1 - Roebben, G. A1 - Tresl, I. A1 - Hearn, R. A1 - Wood, S. A1 - Pritzkow, W. A1 - Vogl, Jochen T1 - Certification of the sulfur mass fraction in three commercial petrol materials - Certified reference materials ERM-EF211, ERM-EF212 and ERM-EF213 N2 - Three petrol reference materials were certified for their total sulfur content in support of Directive 2003/17/EC of the European Parliament and of the European Council, which stipulates that petrol with a maximum S content of 10 mg/kg must be available in all member states by 2009. Commercially available petrol was obtained and filled into borosilicate ampoules without further treatment. Homogeneity of the materials was tested and no heterogeneity was detected for two of the materials, whereas minor heterogeneity was observed for the third material. Stability of the materials was tested for 8-12 months at 60 °C and no degradation was observed. Characterisation was based on isotope-dilution mass spectrometry (IDMS) applied as primary method of measurement by three European metrology institutes and certified values were assigned using all results. The certified uncertainties include contributions of (potential) heterogeneity, potential degradation as well as characterisation. The final assigned values are: ERM-EF211: 48.8 ± 1.7 mg/kg ERM-EF212: 20.2 ± 1.1 mg/kg ERM-EF213: 9.1 ± 0.8 mg/kg The materials are available from IRMM (ERM-EF211), LGC (ERM-EF212) and BAM (ERMEF213) KW - Sulfur KW - Petrol KW - IDMS PY - 2007 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-355804 SN - 978-92-79-05370-2 SN - 1018-5593 SP - 1 EP - 37 PB - European Communities CY - Luxembourg AN - OPUS4-35580 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Vogl, Jochen A1 - Becker, Dorit A1 - Koenig, Maren A1 - Rienitz, O. A1 - Noordmann, J. T1 - Certification report for the reference materials ERM-AE140 and ERM-AE141 - Pd and Pt single spikes certified for their Pd and Pt mass fraction and isotopic composition N2 - Isotope dilution mass spectrometry often is applied for the quantification of platinum group elements in environmental and geological samples. In most cases, however, certified spike solutions offering complete uncertainty statements and SI-traceability are missing. This report describes the production and certification of two isotope reference materials, ERM-AE140 and ERM-AE141, serving as calibrated spike solutions for IDMS based quantification of Pd and Pt, respectively. Both materials were produced by dissolving highly enriched isotopes 106Pd and 194Pt and determining the mass fraction of 106Pd and 194Pt in the final solution by reverse IDMS. Two independent back-spikes were produced for each material from high purity Pd and Pt. Characterization measurements were carried out by MC-ICPMS. For ERM-AE140 the certified mass fractions are w(106Pd) = 20.24(5) mg/kg and w(Pd) = 20.54(5) mg/kg. For ERM-AE141 the certified mass fractions are w(194Pt) = 18.18(11) mg/kg and w(Pt) = 19.90(12) mg/kg. These values are traceable to the International System of Units (SI) in the shortest possible way. KW - Palladium KW - Enriched isotope KW - Platinum KW - Spike KW - IDMS PY - 2015 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-355833 SP - 1 EP - 25 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-35583 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Vogl, Jochen A1 - Becker, Dorit A1 - Koenig, Maren A1 - Rosner, M. T1 - Certification report for the reference materials ERM-AE102a, -AE104a, -AE120, -AE121 and -AE122 N2 - Isotope reference materials are essential to enable reliable and comparable isotope data. Besides the correction of mass fractionation or mass discrimination isotope reference materials are indispensible for validation and quality control of analytical procedures. This article describes the production and certification of a set of five isotope reference materials ERM-AE102a, 104a, AE120, 121 and 122, for boron isotope analysis. The isotopic composition of all materials has been adjusted by mixing boron mother solutions enriched in 10B or 11B with a boron mother solution having natural-like isotopic composition under full gravimetric control. All mother solutions have been analysed for their boron mass fraction as well as their boron isotopic composition by TIMS using IDMS as calibration technique. For all five reference materials the isotopic composition obtained on the basis of the gravimetric data agrees very well with the isotopic composition obtained from different TIMS techniques. Performed stability and homogeneity studies show no significant influence on the isotopic composition as well as on the related uncertainties. The certified isotope abundances for 10B are 0.29995 (27) for ERM-AE102a and 0.31488 (28) for ERM-AE104a. The certified δ11B values are -20.2 (6) ‰ for ERM-AE120, 19.9(6) ‰ for ERM-AE121 and 39.7 (6) ‰ for ERM-AE122. Together with the formerly certified ERM-AE101 and -AE103 a unique set of seven certified reference materials (CRM) for boron isotope analysis is now available from BAM. KW - Boron KW - Delta value KW - Isotope ratio KW - ICPMS KW - TIMS PY - 2010 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-355813 SP - 1 EP - 24 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-35581 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Vogl, Jochen A1 - Becker, Dorit A1 - Janisch, N. A1 - Klingbeil, P. A1 - Ludwig, H. P. A1 - Riebe, G. A1 - Pritzkow, W. A1 - Wermann, G. T1 - Zertifizierungsbericht für ERM-AE101 (auch BAM-I001), ERM-AE102 (auch BAM-I002) und ERM-AE103 (auch BAM-I003) N2 - Dieser Bericht beschreibt die Zertifizierung von 3 synthetischen Isotopenmischungen aus natürlicher und angereicherter Borsäure. Diese Isotopen-ZRM liegen als konzentrierte, wäs-serige Borsäure-Lösungen vor und sind bezüglich ihrer Isotopenzusammensetzung zertifi¬ziert. Der Bor-Gesamtgehalt ist als Richtwert angegeben. Die Unsicherheiten sind erweiterte Messunsicherheiten mit k=2. Sie sind in Klammern angegeben und beziehen sich auf die letzten beiden Stellen. Die vorliegenden Isotopen-ZRM sind bezüglich ihrer Isotopenzu¬sam-mensetzung mit erweiterten relativen Messunsicherheiten kleiner 0,12% zertifiziert. Die ab-solute, kombinierte Standardunsicherheit des prozentualen Stoffmengenanteils der Isotope (Isotopenhäufigkeit) liegt zwischen 0.012 und 0.017. KW - Isotope KW - Bor KW - Kernkraftwerke PY - 2009 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-355777 SP - 1 EP - 21 CY - Berlin AN - OPUS4-35577 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Chronakis, Michail Ioannis A1 - von der Au, Marcus A1 - Faßbender, Sebastian A1 - Vogl, Jochen A1 - Meermann, Björn T1 - MDG-ICP-ToF-MS: A Versatile Tool for Quantification in the field of Single Particle ICP-MS Using Isotope Dilution N2 - In the interest of exploring their potential in the field of single particle analysis, a Microdroplet Generator (MDG) was coupled to an ICP-ToF-MS. Isotopic Dilution Analysis was also incorporated for the size determination of three different Platinum nanoparticles samples (50, 63 and 70 nm). The performance of the technique was validated by comparison to traditional size characterization techniques (sp-ICP-ToF-MS, TEM), while the robustness of the technique was proven by incorporating NaCl in the samples’ matrix, up to 100 mg/L. T2 - European Winter Conference on Plasma Spectrochemistry CY - Ljubljana, Slovenia DA - 29.01.2023 KW - MDG KW - Single Particle KW - Isotope Dilution PY - 2023 AN - OPUS4-57643 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen A1 - Irrgeher, J. T1 - IUPAC Commission on Isotopic Abundances and Atomic Weights its history, role, and work N2 - This presentation provides a short introduction to the Commission on Isotopic Abundances and Atomic Weights (CIAAW). It describes the role of the Commission and provides an insight into its work and the corresponding principal tasks. Finally, it provides the reader with the latest achievements and with the most recent publications. T2 - IUPAC Virtual General Assembly CY - Online meeting DA - 25.07.2023 KW - Absolute isotope ratio KW - Atomic weights KW - Metrology KW - Traceability KW - Isotope reference material PY - 2023 AN - OPUS4-58013 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Ecker, K. H. A1 - Wätjen, U. A1 - Berger, Achim A1 - Grötzschel, R. A1 - Persson, L. A1 - Pritzkow, W. A1 - Radtke, Martin A1 - Riebe, Gundel A1 - Riesemeier, Heinrich A1 - Vogl, Jochen T1 - Certification of antimony implanted in silicon wafer with a silicon dioxide diffusion barrier - IRMM-302 and BAM-L001 N2 - This Report describes the certification of the reference material antimony implanted in Si/SiO2 intended to be used for calibration of surface and near surface analytical methods. It describes the preparation, homogeneity measurements and the analytical work performed for the certification of both Areal density of antimony Atoms (retained dose) and the isotope amount Ratio as well as giving considerations on the stability of the material. KW - Isotope ratio KW - Areal density KW - Surface analysis PY - 2002 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-355752 SP - 1 EP - 40 PB - Institute for Reference Materials and Measurements CY - Geel, Belgium AN - OPUS4-35575 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Vogl, Jochen A1 - Rienitz, O. A1 - Rosner, M. A1 - Mieller, Björn A1 - Kasemann, S. A1 - Kraft, R. A1 - Malinovskiy, D. A1 - Meixner, A. A1 - Noordmann, J. A1 - Rabb, S. A1 - Schuessler, J. A. A1 - Vocke, R. D. T1 - Calibration of Mg isotope amount ratios and delta values N2 - In the past, δ26/24Mg measurements were referenced to NIST SRM 980, the initial zero of the δ26/24Mg scale. With the development of MC-ICPMS, the detection of small but measurable isotopic differences in different chips of SRM 980 became apparent. To solve this problem a suite of magnesium isotope reference materials, ERM-AE143, -AE144 and -AE145, has been certified in a first study by applying an ab initio calibration for absolute Mg isotope ratios without any a priori assumptions, a procedure which fulfils all requirements of a primary method of measurement. We could achieve for the first time measurement uncertainties for isotope amount ratios close to the typical precision of magnesium delta values, δ26/24Mg, which are at the 0.1 ‰ level (2SD). In addition, it was demonstrated that commonly used fractionation laws are invalid for correcting Mg isotope ratios in multi-collector ICPMS as they result in a bias which is not covered by its associated uncertainty. Depending on their type, fractionation laws create a bias up to several per mil, with the exponential law showing the smallest bias between 0.1 ‰ to 0.7 ‰. With these isotope reference materials, it is possible to establish SI-traceability for magnesium delta measurements. To realize this, we organized a second study within which five expert laboratories participated to cross-calibrate all available magnesium isotope standards, which are NIST SRM 980, IRMM-009, ERM-AE143, ERM-AE144, ERM-AE145 and the standards DSM3 and Cambridge-1. The mean δ26/24Mg values for the individual iRMs, calculated from the laboratory means show 2 SD reproducibilities varying between 0.025 and 0.093 ‰. Propagated measurement uncertainties suggest a standard uncertainty of about 0.1‰ for δ26/24Mg determinations (2SD). Thus, SI traceability for magnesium isotope amount ratios and delta values is demonstrated to be established. T2 - 53rd annual conference of the DGMS including 27th ICP-MS User's Meeting CY - Münster, Germany DA - 01.03.2020 KW - Isotope ratio KW - Delta value KW - Metrology KW - Magnesium KW - Magnesium isotope ratios PY - 2020 N1 - Geburtsname von Mieller, Björn: Brandt, B. - Birth name of Mieller, Björn: Brandt, B. AN - OPUS4-50549 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Hill, Sarah A1 - Infante, Heidi Goenaga A1 - Entwisle, John A1 - Strekopytov, Stanislav A1 - Ward-Deitrich, Christian A1 - Cowen, Simon A1 - Rienitz, Olaf A1 - Roethke, Anita A1 - Goerlitz, Volker A1 - Schulz, Ursula A1 - Pape, Carola A1 - Vogl, Jochen A1 - Koenig, Maren A1 - Jacimovic, Radojko A1 - Fisicaro, Paola A1 - Ren, Tongxiang A1 - Wang, Song A1 - Song, Panshu A1 - Li, Haifeng A1 - Linsky, Maré A1 - Sobina, Egor A1 - Lozano, Hernán Ezequiel A1 - Puelles, Mabel A1 - Yamani, Randa A1 - Haraldsson, Conny T1 - CCQM-K160: platinum group elements in automotive catalyst N2 - The platinum group elements (PGEs) play an important role in reducing emissions from automotive vehicles through their use in catalytic convertors but also for catalysis in the pharmaceutical industry. The immense economic value of platinum (Pt), palladium (Pd) and rhodium (Rh) highlights the importance of highly accurate measurements. Therefore, there is a need for National Metrology Institutes (NMIs) and Designated Institutes (DIs) to demonstrate measurement capability in this space. A pilot comparison (CCQM-P63) for precious metals in automotive catalyst took place in 2006, but with a limited number of institutes participating. Furthermore, this study was performed over 17 years ago. Therefore, there was a need to maintain existing capability and demonstrate new capability in a key comparison, in order to claim calibration and measurement capability claims (CMCs). With the core capability matrix, this study falls into the "Difficult to dissolve metals/metal oxides" which will support CMC categories 8 (Metal and metal alloys), 9 (Advanced materials) and 14 (Other materials). Eleven NMIs and DIs participated in the Key Comparison CCQM-K160 Platinum Group Elements in Automotive Catalyst. Participants were requested to evaluate the mass fractions of Pt, Pd and Rh in mg/kg in an unused autocatalyst material (cordierite ceramic base). The Key Comparison Reference Values (KCRVs) and Degrees of Equivalence (DoEs) were calculated utilising the NIST Decision Tree for the measurands. The participants utilised a number of sample preparation and analytical methods including hot plate digestion, microwave digestion and sodium fusion, followed by either atomic absorption spectroscopy (AAS), inductively coupled plasma optical emission spectroscopy (ICP-OES) or inductively coupled plasma mass spectrometry (ICP-MS) detection. Several calibration techniques were used, namely external calibration, standard addition, isotope dilution mass spectrometry (IDMS) and an exact matching procedure. Additionally, one participant employed instrumental neutron activation analysis (INAA) with k0 standardisation which is a direct solid analysis method. The majority of participants claimed traceability to NIST primary calibrants or their own CRMs. Furthermore, several matrix CRMs were included or spiked samples for quality control. All institutes were required to determine the dry mass fraction using the stipulated protocol. The NIST decision tree was implemented for the calculation of the KCRVs and DoEs. The participant results overall showed good agreement with the KCRV, despite the variety of dissolution procedures and measurement techniques for this highly complex matrix and challenging measurands. Successful participation in CCQM-K160 demonstrated measurement capabilities for the determination of mass fraction of Pt, Pd and Rh in the mg/kg range and will support broad scope CMC claims for a wide range of challenging matrices. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/. The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA). KW - Metrology in Chemistry KW - Traceability KW - Uncertainty PY - 2024 DO - https://doi.org/10.1088/0026-1394/61/1A/08011 VL - 61 IS - 1A SP - 1 EP - 39 PB - IOP Publishing AN - OPUS4-60524 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -