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Determination of Scandium, Yttrium and Rare Earth Elements in Rocks by High Resolution Inductively Coupled Plasma-Mass Spectrometry

Citation

Robinson, P and Townsend, AT and Yu, Z and Munker, C, Determination of Scandium, Yttrium and Rare Earth Elements in Rocks by High Resolution Inductively Coupled Plasma-Mass Spectrometry, Geostandards Newsletter, 23, (1) pp. 31-46. ISSN 0150-5505 (1999) [Refereed Article]

DOI: doi:10.1111/j.1751-908X.1999.tb00557.x

Abstract

The high sensitivity, minimal oxide formation and single internal standard capability of high resolution inductively coupled plasma-mass spectrometry (HR-ICP-MS) is demonstrated in the direct determination of Sc, Y and REE in the international reference materials: basalts (BCR-1, BHVO-1, BIR-1, DNC-1), andesite (AGV-1) and ultramafics (UB-N, PCC-1 and DTS-1). Time consuming ion exchange separation or preconcentration were found to be unnecessary. Smooth chondrite normalized plots of the REE in PCC-1 and DTS-1 were obtained in the range 0.8-50 ng g-1 (0.01-0.1× chondrite). Method precision was found to be digestion dependent with an average external repeatability of 2-4% for the basalts, AGV-1 and UB-N, and 10% for PCC-1 and DTS-1. The mass peak due to 45Sc was completely resolved from 29Si16O and 28Si16O1H spectral interferences using medium resolution, which casts doubt on the accuracy of Sc determinations using quadrupole ICP-MS. Literature values for Y in rock reference materials were found to be approximately 9% high after HR-ICP-MS and XRF analysis.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geochemistry
Research Field:Inorganic Geochemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Robinson, P (Mr Philip Robinson)
Author:Townsend, AT (Associate Professor Ashley Townsend)
Author:Yu, Z (Mr Zongshou Yu)
Author:Munker, C (Dr Carsten Munker)
ID Code:18234
Year Published:1999
Web of Science® Times Cited:82
Deposited By:Earth Sciences
Deposited On:1999-08-01
Last Modified:2009-08-19
Downloads:0

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