Silicon Isotope Analyses of Soil and Plant Reference Materials: An Inter-Comparison of Seven Laboratories

Camille Delvigne, Abel Guihou, Jan A Schuessler, Paul Savage, Franck Poitrasson, Sebastian Fischer, Jade E Hatton, Katharine R Hendry, Germain Bayon, Emmanuel Ponzevera, Bastian Georg, Alisson Akerman, Oleg S Pokrovsky, Jean-Dominique Meunier, Pierre Deschamps, Isabelle Basile-Doelsch

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)
2 Downloads (Pure)

Abstract

The use of silicon (Si) isotopes has led to major advances in our understanding of Si cycling in modern and past environments. This inter‐laboratory comparison exercise provides the community with the first set of soil and plant reference materials with an analytically challenging matrix containing organic material that is known to induce isotopic bias, for use as secondary reference materials in Si isotope measurement. Seven laboratories analysed four soil reference materials (GBW‐07401, GBW‐07404, GBW‐07407, TILL‐1) and one plant reference material (ERM‐CD281). Participating laboratories employed a range of chemical preparation methods and analytical setups but all analyses were performed by MC‐ICP‐MS. Irrespective of the chemical preparation method or analytical conditions, the results show excellent agreement among laboratories within 2s for at least three replicates. Data were combined together to calculate δ29Si and δ30Si mean values (relative to NBS 28) and their expanded uncertainties (U, coverage factor k = 2). The δ30Si values are as follow: GBW‐07401: −0.27 ± 0.06‰, GBW‐07404: −0.76 ± 0.12‰, GBW‐07407: −1.82 ± 0.17‰, TILL‐1: −0.16 ± 0.06‰ and ERM‐CD281: −0.28 ± 0.11‰. Also, a compilation of published data provides an up‐to‐date mean δ30Si for BHVO‐2 of −0.28 ± 0.08‰.
Original languageEnglish
Pages (from-to)525-538
Number of pages14
JournalGeostandards and Geoanalytical Research
Volume45
Issue number3
Early online date9 Mar 2021
DOIs
Publication statusPublished - Sep 2021

Bibliographical note

Funding Information:
At CEREGE, this project was initiated by an EIL funding from the Société Française des Isotopes Stables (SFIS) and also supported by the Agence Nationale pour la Recherche (ANR, France) through the project EQUIPEX ASTER‐CEREGE and the project BIOSiSOL (ANR‐14‐CE01‐002). C.D. was funded by the ‘Fonds National de la Recherche Scientifique’ (Belgium). SF and the Si isotope measurements at STAiG were supported by NERC grant NE/R002134/1 to PS; PS would also like to cite the support of a Carnegie Trust Research Incentive Grant, which helped the setup of various isotope techniques in the St Andrews Isotope Geochemistry (STAiG) laboratories. F. von Blanckenburg and the Helmholtz Association are thanked for infrastructure support at GFZ. At the University of Bristol, C.D. Coath is thanked for laboratory support and the European Research Council is acknowledged for funding (ICY‐LAB, grant agreement 678371). Hélène Mariot is thanked for her careful maintenance of the CEREGE clean lab. Manuel Henry and Jérôme Chmeleff are thanked for maintaining the GET clean laboratory and MC‐ICP‐MS facilities in good working order. J. Schlegel and J. Buhk are acknowledged for laboratory support at GFZ.

Funding Information:
At CEREGE, this project was initiated by an EIL funding from the Soci?t? Fran?aise des Isotopes Stables (SFIS) and also supported by the Agence Nationale pour la Recherche (ANR, France) through the project EQUIPEX ASTER-CEREGE and the project BIOSiSOL (ANR-14-CE01-002). C.D. was funded by the ?Fonds National de la Recherche Scientifique? (Belgium). SF and the Si isotope measurements at STAiG were supported by NERC grant NE/R002134/1 to PS; PS would also like to cite the support of a Carnegie Trust Research Incentive Grant, which helped the setup of various isotope techniques in the St Andrews Isotope Geochemistry (STAiG) laboratories. F. von Blanckenburg and the Helmholtz Association are thanked for infrastructure support at GFZ. At the University of Bristol, C.D. Coath is thanked for laboratory support and the European Research Council is acknowledged for funding (ICY-LAB, grant agreement 678371). H?l?ne Mariot is thanked for her careful maintenance of the CEREGE clean lab. Manuel Henry and J?r?me Chmeleff are thanked for maintaining the GET clean laboratory and MC-ICP-MS facilities in good working order. J. Schlegel and J. Buhk are acknowledged for laboratory support at GFZ.

Publisher Copyright:
© 2021 The Authors. Geostandards and Geoanalytical Research © 2021 International Association of Geoanalysts

Keywords

  • silicon isotopes
  • reference materials
  • soil
  • plant
  • inter-comparison of measurements

Fingerprint

Dive into the research topics of 'Silicon Isotope Analyses of Soil and Plant Reference Materials: An Inter-Comparison of Seven Laboratories'. Together they form a unique fingerprint.

Cite this