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    Mg isotope inter-laboratory comparison of reference materials from earth-surface low-temperature environments

    Shalev, N. and Farkas, J. and Fietzke, J. and Novak, M. and Schuessler, J.A. and Pogge von Strandmann, Philip A.E. and Torber, P.B. (2018) Mg isotope inter-laboratory comparison of reference materials from earth-surface low-temperature environments. Geostandards and Geoanalytical Research 42 (2), pp. 205-221. ISSN 1639-4488.

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    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.

    Metadata

    Item Type: Article
    Additional Information: This is the peer reviewed version of the article, which has been published in final form at the link above. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Philip Pogge Von Strandmann
    Date Deposited: 19 Mar 2018 14:31
    Last Modified: 30 Jul 2019 05:02
    URI: http://eprints.bbk.ac.uk/id/eprint/21716

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