Silicon Isotope Analyses of Soil and Plant Reference Materials: An Inter‐Comparison of Seven Laboratories
| Type | Article | ||||||||||||||||
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| Date | 2021-09 | ||||||||||||||||
| Language | English | ||||||||||||||||
| Author(s) | Delvigne Camille 1, 2, Guihou Abel1, Schuessler Jan A.3, 4, Savage Paul5, Poitrasson Franck6, Fischer Sebastian5, Hatton Jade E.7, Hendry Katharine R.7, Bayon Germain8, Ponzevera Emmanuel8, Georg Bastian9, 10, Akerman Alisson6, Pokrovsky Oleg S.6, 11, Meunier Jean-Dominique1, Deschamps Pierre1, Basile‐doelsch Isabelle1 |
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| Affiliation(s) | 1 : Aix Marseille Univ ,CNRS IRD, INRAE, Coll. France, CEREGE, Europôle Méditerranée de l’Arbois BP 80 13545 Aix‐en‐Provence cedex ,France 2 : Earth and Life Institute Environmental sciences, Université Catholique de Louvain L7.05.10 1348 Louvain‐la‐Neuve, Belgium 3 : Thermo Fisher Scientific ,Bremen ,Germany 4 : GFZ,German Research Centre for Geosciences Potsdam 14473 ,Germany 5 : School of Earth & Environmental Sciences University of St Andrews Irvine Building, St Andrews, KY16 9AL, UK 6 : Géoscience and Environment Toulouse (GET), UMR 5563 CNRS‐University of Toulouse III‐IRD‐CNES 14 Avenue Edouard Belin 31400 Toulouse ,France 7 : School of Earth Sciences ,University of Bristol Wills Memorial Building, Queens Road Bristol, UK 8 : IFREMER, Marine Geosciences Unit Brest,France 9 : Water Quality Center Trent University ,Peterborough ON K9L 1Z8 ,Canada 10 : Agilent Technologies Canada, 6705 Millcreek Dr Mississauga ON L5N 5M4 ,Canada 11 : BIO‐GEO‐CLIM ,Laboratory Tomsk State University Lenina av., 36 Tomsk, Russia |
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| Source | Geostandards And Geoanalytical Research (1639-4488) (Wiley), 2021-09 , Vol. 45 , N. 3 , P. 525-538 | ||||||||||||||||
| DOI | 10.1111/ggr.12378 | ||||||||||||||||
| WOS© Times Cited | 4 | ||||||||||||||||
| Keyword(s) | silicon isotopes, reference materials, soil, plant, inter‐, comparison of measurements | ||||||||||||||||
| 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 ‰. |
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