A new chemical separation procedure for the determination of rare earth elements and yttrium abundances in carbonates by ICP-MS

Type Article
Date 2020-11
Language English
Author(s) Barrat Jean-Alix1, 2, Bayon Germain3, Wang Xudong3, 4, Le Goff Samuel1, 5, Rouget Marie-Laure1, 6, Gueguen Bleuenn1, 6, Ben Salem Douraied7
Affiliation(s) 1 : Univ Brest, CNRS, UMR 6538 (Laboratoire Géosciences Océan), Institut Universitaire Européen de La Mer (IUEM), Place Nicolas Copernic, 29280 Plouzané, France
2 : Univ Brest, CNRS, UMR 6539 (Laboratoire des Sciences de L’Environnement Marin), LIA BeBEST, Institut Universitaire Européen de La Mer (IUEM), Place Nicolas Copernic, 29280 Plouzané, France
3 : IFREMER, Marine Geosciences Unit, F-29280 Plouzané, France
4 : Shanghai Engineering Research Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
5 : ENS Lyon, CNRS, UMR 5276, LGLTPE, 46 Allée Italie, F-69342 Lyon, France
6 : CNRS, Univ Brest, UMS 3113, F-29280 Plouzané, France
7 : LaTIM (INSERM UMR 1101) Université de Bretagne Occidentale. 22, Avenue C. Desmoulins, 29238, Brest Cedex 3, France
Source Talanta (0039-9140) (Elsevier BV), 2020-11 , Vol. 219 , P. 121244 (6p.)
DOI 10.1016/j.talanta.2020.121244
WOS© Times Cited 15
Keyword(s) Rare earth elements, DGA resin, Carbonate, ICP-MS, CAL-S, JLs-1

The determination of rare earth elements (REEs) and Y in carbonates can be complicated by low REE abundances and the presence of significant amounts of Ba resulting in problematic interferences when analyzed by ICP-MS. We describe here a novel ion-exchange method using the DGA resin (TODGA), combined with addition of a Tm spike, which allows the separation of the REEs+Y as a whole prior to analysis using an Element XR ICP-MS. This method was validated with results obtained on three different reference carbonate materials (CAL-S, JLs-1 and BEAN, an in-house standard), yielding reproducibility levels better than 3% (RSD) in most cases. This new separation scheme is particularly well suited for carbonate samples having very low REE contents, but could be equally applied to various rock types and organic-rich sample matrices whenever quantitative Ba removal is required.

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