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Precise lead isotope ratios in Australian galena samples by high resolution inductively coupled plasma mass spectrometry

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Townsend, AT and Yu, Z and McGoldrick, PJ and Hutton, JA (1998) Precise lead isotope ratios in Australian galena samples by high resolution inductively coupled plasma mass spectrometry. Journal of Analytical Atomic Spectrometry, 13. pp. 809-813.

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Abstract

High resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) was used to measure Pb isotope ratios in standard solutions and Pb mineral digests. The RSD values obtained for 208Pb/204Pb, 207Pb/204Pb, 206Pb/204Pb, 208Pb/206Pb and 207Pb/206Pb were 0.13, 0.11, 0.11, 0.046 and 0.048%, respectively (values as 1 [lowercase sigma]). These values were obtained from 30 analyses of three different standard sample types (multi-element standard, NIST SRM 981 and a Broken Hill galena digest). Based on 39 analyses of 11 galena samples from different locations around Australia, the difference between HR-ICP-MS and conventional TIMS values for 208Pb/204Pb, 207Pb/204Pb, 206Pb/204Pb, 208Pb/206Pb and 207Pb/206Pb ratios was generally better than +/- 0.2%. This paper outlines a very simple and rapid analytical method for the measurement of Pb isotope ratios, and is one of the first studies to use HR-ICP-MS to measure Pb isotope ratios in galena and galena-bearing ores.

Item Type: Article
Keywords: Lead isotope ratios, high resolution inductively coupled plasma mass spectrometry, galena, ores
Journal or Publication Title: Journal of Analytical Atomic Spectrometry
Page Range: pp. 809-813
Identification Number - DOI: 10.1039/a801397g
Additional Information: Definitive version available at http://www.rsc.org/publishing/journals/JA/article.asp?doi=a801397g
Date Deposited: 24 Jan 2007
Last Modified: 18 Nov 2014 03:12
URI: http://eprints.utas.edu.au/id/eprint/559
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