Data/hora: 09/06/2024 05:44:04

Provedor de dados: 	5	
País: 	France	
Título: 	Determination of Rare Earth Elements, Sc, Y, Zr, Ba, Hf and Th in Geological Samples by ICP-MS after Tm Addition and Alkaline Fusion	
Autores: 	Bayon, Germain; Barrat, Jean Alix; Etoubleau, Joel; Benoit, Mathieu; Bollinger, Claire; Revillon, Sidonie.	
Data: 	2009-03	
Ano: 	2009	
Palavras-chave: 	Digestion des Echantillons; Spike de Tm; ICP MS; MatEriaux de rEfErence; Echantillons gEologiques; ElEments du groupe des Terres Rares; Sample digestion; Tm spike; ICP MS; Reference materials; Geological samples; Rare earth elements.	
Resumo: 	We present a revised method for the determination of concentrations of rare earth (REE) and other trace elements (Y, Sc, Zr, Ba, Hf, Th) in geological samples. Our analytical procedure involves sample digestion using alkaline fusion (NaOH-Na2O2) after addition of a Tm spike, co-precipitation on iron hydroxides, and measurement by sector field-inductively coupled plasma-mass spectrometry (SF-ICP-MS). The procedure was tested successfully for various rock types (i.e., basalt, ultramafic rock, sediment, soil, granite), including rocks with low trace element abundances (sub ng g(-1)). Results obtained for a series of nine geological reference materials (BIR-1, BCR-2, UB-N, JP-1, AC-E, MA-N, MAG-1, GSMS-2, GSS-4) are in reasonable agreement with published working values.Nous prEsentons une mEthode rEvisEe pour la dEtermination des teneurs en Terres Rares et autres ElEments traces (Y, Sc, Zr, Ba, Hf, Th) dans les Echantillons gEologiques. Notre procEdure analytique implique la digestion des Echantillons par fusion alcaline (NaOH-Na2O2) apres ajout d'un spike de Tm, la co-prEcipitation avec des oxydes de Fer, et la mesure par spectromEtrie de masse a secteur magnEtique couplEe a une source a plasma induit (SF-ICP-MS). La procEdure a EtE testEe avec succes pour plusieurs types de roches (basalte, roche ultramafique, sEdiment, sol, granite), y compris des roches caractErisEes par de faibles teneurs en ElEments traces (sub ng g(-1)). Les rEsultats obtenus pour une sErie de neuf matEriaux de rEfErences gEologiques (BIR-1, BCR-2, UB-N, JP-1, AC-E, MA-N, MAG-1, GSMS-2, GSS-4) sont en accord avec les valeurs de travail publiEes dans la littErature.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/2009/publication-6449.pdf

DOI:10.1111/j.1751-908X.2009.00880.x	
Editor: 	Wiley / Blackwell	
Relação: 	http://archimer.ifremer.fr/doc/00000/6449/	
Formato: 	application/pdf	
Fonte: 	Geostandards and Geoanalytical Research (1639-4488) (Wiley / Blackwell), 2009-03 , Vol. 33 , N. 1 , P. 51-62	
Fonte: 	2009 Wiley Blackwell Publishing, Inc. 2009 International Association of Geoanalysts