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|Title:||Mg isotope inter-laboratory comparison of reference materials from earth-surface low-temperature environments|
Pogge von Strandmann, P.
|Citation:||Geostandards and Geoanalytical Research, 2018; 42(2):205-221|
|Netta Shalev, Juraj Farkaš, Jan Fietzke, Martin Novák, Jan A. Schuessler, Philip A.E. Pogge von Strandmann, Philip B. Törber|
|Abstract:||To enable quality control of measurement procedures for determinations of Mg isotope amount ratios, expressed as δ26Mg and δ25Mg values, in Earth-surface studies, the δ26Mg and δ25Mg values of eight reference materials (RMs) were determined by inter-laboratory comparison between five laboratories and considering published data, if available. These matrix RMs, including river water SLRS-5, spring water NIST SRM 1640a, Dead Sea brine DSW-1, dolomites JDo-1 and CRM 512, limestone CRM 513, soil NIST SRM 2709a and vegetation NIST SRM 1515 apple leaves, are representative for a wide range of Earth-surface materials from low-temperature environments. The inter-laboratory variability, 2s (twice the standard deviation), of all eight RMs ranges from 0.05 to 0.17‰ in δ26Mg. Thus, it is suggested that all these materials are suitable for validation of δ26Mg and δ25Mg determinations of Earth-surface geochemical studies.|
|Keywords:||Earth‐surface; interlaboratory comparison; low‐temperature; Mg isotopes; reference materials|
|Rights:||© 2018 The Authors. Geostandards and Geoanalytical Research published by John Wiley & Sons Ltd on behalf of International Association of Geoanalysts. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.|
|Appears in Collections:||Geology & Geophysics publications|
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