View Item 

Determination of Platinum-Group Elements and Re-Os Isotopes using ID-ICP-MS and N-TIMS from a Single Digestion after Two-Stage Column Separation

Access Status
Open access
Authors
Li, J.
Jiang, X.
Xu, J.
Zhong, L.
Wang, Xuan-Ce
Wang, G.
Zhao, P.
Date
2014
Type
Journal Article

Metadata
Show full item record
Citation
Li, J. and Jiang, X. and Xu, J. and Zhong, L. and Wang, X. and Wang, G. and Zhao, P. 2014. Determination of Platinum-Group Elements and Re-Os Isotopes using ID-ICP-MS and N-TIMS from a Single Digestion after Two-Stage Column Separation. Geostandards and Geoanalytical Research. 38 (1): pp. 37-50.
Source Title
Geostandards and Geoanalytical Research
DOI
ISSN
School
Department of Applied Geology
Remarks

This is the accepted version of the following article: Li, J. and Jiang, X. and Xu, J. and Zhong, L. and Wang, X. and Wang, G. and Zhao, P. 2014. Determination of Platinum-Group Elements and Re-Os Isotopes using ID-ICP-MS and N-TIMS from a Single Digestion after Two-Stage Column Separation. Geostandards and Geoanalytical Research. 38 (1): pp. 37-50., which has been published in final form at http://doi.org/10.1111/j.1751-908X.2013.00242.x

URI
Collection
Abstract

We report an improved procedure for the determination of the platinum-group elements (PGE) and Re, and Os isotopes from a single sample aliquot by isotope dilution (ID) using inductively coupled plasma-mass spectrometry (ICP-MS) and negative thermal ionisation mass spectrometry (N-TIMS), respectively. A two-stage column method was used to purify PGE-Re from their samplematrix and interfering elements (e.g., Mo, Zr and Hf) after Os had been separated by CCl4 solvent extraction. The first column separation step used cation exchange resin (AG50W-X8) to concentrate PGE-Re and some potential interfering elements (e.g., Mo, Zr and Hf). In the second step, N-benzoyl-N-phenylhydroxylamine (BPHA) extraction resin was used to separate PGE-Re from the remaining interfering elements, which all remained strongly absorbed to the resin. The method was used todetermine the PGE and rhenium, and Os isotope ratios in a range of geochemical reference materials (TDB-1, WGB-1, BHVO-2 and UB-N). The obtained results agree well with those previously published. This new method enables PGE-Re abundances and Os isotopic ratios to be determined on the same sample digestion, and circumvents the problems created by sample heterogeneity when comparing PGE and Re-Os isotope data.