A New Interlaboratory Characterisation of Silicon, Rare Earth Elements and Twenty‐Two other Trace Element Mass Fractions in the Natural River Water Certified Reference Material SLRS ‐6 ( NRC ‐ CNRC )

Delphine Yeghicheyan (1) , Dominique Aubert (2) , Martine Bouhnik-Le Coz (3) , Jérôme Chmeleff (4) , Sophie Delpoux (5) , Irina Djouraev (6) , Guy Granier (7) , F. Lacan (8) , Jean-Luc Piro (9) , Tristan Rousseau (10) , Christophe Cloquet (1) , Aurélie Marquet (4) , Christophe Menniti (2) , Catherine Pradoux (8) , Rémi Freydier (5) , Emmanoel Vieira da Silva‐filho (11) , Krzysztof Suchorski (9)

1 CRPG - Centre de Recherches Pétrographiques et Géochimiques
2 CEFREM - Centre de Formation et de Recherche sur les Environnements Méditérranéens
3 GR - Géosciences Rennes
4 GET - Géosciences Environnement Toulouse
5 HSM - Hydrosciences Montpellier
6 CYBIOM - Cycles biogéochimiques marins : processus et perturbations
7 CETAMA - Commission des méthodes d'analyse du CEA
8 LEGOS - Laboratoire d'études en Géophysique et océanographie spatiales
9 LMV - Laboratoire Magmas et Volcans
10 LABOMAR Instituto de Ciencias do Mar
11 UFF - Universidade Federal Fluminense [Rio de Janeiro]

The natural river water reference material SLRS‐6 (NRC‐CNRC) is the newest batch of a quality control material routinely used in many international environmental laboratories. This work presents a nine‐laboratory compilation of measurements of major and trace element mass fractions and their related uncertainties, unavailable in the NRC‐CNRC certificate (B, Cs, Li, Ga, Ge, Hf, Nb, P, Rb, Rh, Re, S, Sc, Se, Si, Sn, Th, Ti, Tl, W, Y, Y, Zr and REEs). Measurements were mostly made using inductively coupled plasma‐mass spectrometry. The results are compared with equivalent data for the last batch of the material, SLRS‐5, measured simultaneously with SLRS‐6 in this study. In general, very low mass fractions, close to the quantification limits, were found in the new batch. The Sr isotopic ratio is also reported.

Keywords: CRM; interlaboratory comparison; rare earth elements; river water reference material; ICP‐MS; trace elements

Domains: Geochemistry; Hydrology

Delphine Yeghicheyan, Dominique Aubert, Martine Bouhnik-Le Coz, Jérôme Chmeleff, Sophie Delpoux, et al.. A New Interlaboratory Characterisation of Silicon, Rare Earth Elements and Twenty‐Two other Trace Element Mass Fractions in the Natural River Water Certified Reference Material SLRS ‐6 ( NRC ‐ CNRC ). Geostandards and Geoanalytical Research, 2019, 43 (3), pp.475-496. ⟨10.1111/ggr.12268⟩. ⟨insu-02123880⟩