Precise lead isotope ratios in Australian galena samples by high resolution inductively coupled plasma mass spectrometry
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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Official URL: http://dx.doi.org/10.1039/a801397g
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.
|Additional Information:||Definitive version available at http://www.rsc.org/publishing/journals/JA/article.asp?doi=a801397g|
|Keywords:||Lead isotope ratios, high resolution inductively coupled plasma mass spectrometry, galena, ores|
|Deposited By:||Dr Ashley Townsend|
|Deposited On:||24 Jan 2007|
|Last Modified:||18 Sep 2008 14:31|
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