Data/hora: 07/06/2024 05:11:20

Provedor de dados: 	5	
País: 	France	
Título: 	Multi-Element Determination of Trace Elements in Natural Water Reference Materials by ICP-SFMS after Tm Addition and Iron Co-precipitation	
Autores: 	Bayon, Germain; Birot, Dominique; Bollinger, Claire; Barrat, Jean Alix.	
Data: 	2011-03	
Ano: 	2011	
Palavras-chave: 	Seawater; Reference material; ICP-MS; Trace elements; Rare earth elements; Eau de mer; Materiau de reference; ICP-MS; Elements traces; Terres Rares.	
Resumo: 	We report on an improved method for determining trace element abundances in seawater and other natural waters. The analytical procedure involves co-precipitation on iron hydroxides after addition of a Tm spike, and measurement by inductively coupled plasma-sector field mass spectrometry (ICP-SFMS). The validity of the method was assessed through a series of co-precipitation experiments, using ultra-diluted solutions of a certified rock reference material (BIR-1). Results obtained for four natural water reference materials (NASS-5, CASS-4, SLEW-3, SLRS-4) are in agreement with published working values for rare earth elements, yttrium, vanadium and, when available, for hafnium, zirconium, thorium and scandium. A set of proposed values with uncertainties typically better than 8% RSD is proposed for Hf, Zr and Th.Nous presentons une methode revisee pour la determination des teneurs en elements traces dans l'eau de mer et autres eaux naturelles. Notre procedure analytique implique la co-precipitation sur des hydroxydes de Fer, apres ajout d'un spike de Tm, et la mesure par spectrometrie de masse a secteur magnetique couplee a une source a plasma induit (ICP-SFMS). La validite de la methode a ete testee en realisant une serie d'experimentations de co-precipitation, a l'aide de solutions ultra-diluees d'un materiau de reference geologique certifie (BIR-1). Les resultats obtenus pour quatre materiaux de references d'eaux naturelles (NASS-5, CASS-4, SLEW-3, SLRS-4) sont en accord avec les valeurs de travail publiees dans la litterature pour les Terres Rares, Yttrium, Vanadium et, lorsqu'elles sont presentes, pour Hafnium, Zirconium, Thorium et Scandium. Des valeurs de reference avec des incertitudes inferieures a 8% CV sont proposees pour Hf, Zr et Th.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00031/14189/18000.pdf

DOI:10.1111/j.1751-908X.2010.00064.x	
Editor: 	Wiley-blackwell Publishing, Inc	
Relação: 	http://archimer.ifremer.fr/doc/00031/14189/	
Formato: 	application/pdf	
Fonte: 	Geostandards And Geoanalytical Research (1639-4488) (Wiley-blackwell Publishing, Inc), 2011-03 , Vol. 35 , N. 1 , P. 145-153	
Fonte: 	2010 The Authors. Geostandards and Geoanalytical Research 2010 International Association of Geoanalysts