Characterisation of Conventional 87Sr/86Sr Isotope Ratios in Cement, Limestone and Slate Reference Materials Based on an Interlaboratory Comparison Study
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In: Geostandards and Geoanalytical Research, Vol. 47.2023, No. 4, 03.07.2023, p. 821-840.
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TY - JOUR
T1 - Characterisation of Conventional 87Sr/86Sr Isotope Ratios in Cement, Limestone and Slate Reference Materials Based on an Interlaboratory Comparison Study
AU - Kazlagić, Anera
AU - Rosner, Martin
AU - Cipriani, Anna
AU - Frick, Daniel A.
AU - Glodny, Johannes
AU - Hoffmann, Elis J.
AU - Hora, John M.
AU - Irrgeher, Johanna
AU - Lugli, Federico
AU - Magna, Tomas
AU - Meisel, Thomas
AU - Meixner, Anette
AU - Possolo, Antonio
AU - Pramann, Axel
AU - Pribil, Michael J.
AU - Prohaska, Thomas
AU - Retzmann, Anika
AU - Rienitz, Olaf
AU - Rutherford, Daniel
AU - Paula-Santos, Gustavo M.
AU - Tatzel, Michael
AU - Widhalm, Sara
AU - Willbold, Matthias
AU - Zuliani, Tea
AU - Vogl, Jochen
N1 - Publisher Copyright: © 2023 The Authors. Geostandards and Geoanalytical Research published by John Wiley & Sons Ltd on behalf of International Association of Geoanalysts.
PY - 2023/7/3
Y1 - 2023/7/3
N2 - An interlaboratory comparison (ILC) was organised to characterise 87Sr/86Sr isotope ratios in geological and industrial reference materials by applying the so-called conventional method for determining 87Sr/86Sr isotope ratios. Four cements (VDZ 100a, VDZ 200a, VDZ 300a, IAG OPC-1), one limestone (IAG CGL ML-3) and one slate (IAG OU-6) reference materials were selected, covering a wide range of naturally occurring Sr isotopic signatures. Thirteen laboratories received aliquots of these six reference materials together with a detailed technical protocol. The consensus values for the six reference materials and their associated measurement uncertainties were obtained by applying a Gaussian, linear mixed effects model fitted to all the measurement results. By combining the consensus values and their uncertainties with an uncertainty contribution for potential heterogeneity, reference values ranging from 0.708134 mol mol-1 to 0.729778 mol mol-1 were obtained with relative expanded uncertainties of ≤ 0.007 %. This study represents an ILC on conventional 87Sr/86Sr isotope ratios, within which metrological principles were considered and the compatibility of measurement results obtained by MC-ICP-MS and by MC-TIMS is demonstrated. The materials characterised in this study can be used as reference materials for validation and quality control purposes and to estimate measurement uncertainties in conventional 87Sr/86Sr isotope ratio measurement.
AB - An interlaboratory comparison (ILC) was organised to characterise 87Sr/86Sr isotope ratios in geological and industrial reference materials by applying the so-called conventional method for determining 87Sr/86Sr isotope ratios. Four cements (VDZ 100a, VDZ 200a, VDZ 300a, IAG OPC-1), one limestone (IAG CGL ML-3) and one slate (IAG OU-6) reference materials were selected, covering a wide range of naturally occurring Sr isotopic signatures. Thirteen laboratories received aliquots of these six reference materials together with a detailed technical protocol. The consensus values for the six reference materials and their associated measurement uncertainties were obtained by applying a Gaussian, linear mixed effects model fitted to all the measurement results. By combining the consensus values and their uncertainties with an uncertainty contribution for potential heterogeneity, reference values ranging from 0.708134 mol mol-1 to 0.729778 mol mol-1 were obtained with relative expanded uncertainties of ≤ 0.007 %. This study represents an ILC on conventional 87Sr/86Sr isotope ratios, within which metrological principles were considered and the compatibility of measurement results obtained by MC-ICP-MS and by MC-TIMS is demonstrated. The materials characterised in this study can be used as reference materials for validation and quality control purposes and to estimate measurement uncertainties in conventional 87Sr/86Sr isotope ratio measurement.
KW - cement
KW - conventional method
KW - geological material
KW - interlaboratory comparison
KW - isotope ratios
KW - MC-ICP-MS
KW - MC-TIMS
KW - measurement uncertainty
KW - Sr isotope analysis
UR - http://www.scopus.com/inward/record.url?scp=85165579256&partnerID=8YFLogxK
U2 - 10.1111/ggr.12517
DO - 10.1111/ggr.12517
M3 - Article
AN - SCOPUS:85165579256
VL - 47.2023
SP - 821
EP - 840
JO - Geostandards and Geoanalytical Research
JF - Geostandards and Geoanalytical Research
SN - 1639-4488
IS - 4
ER -