98_Pb_IRs_JAAS.pdf (100.92 kB)
Precise lead isotope ratios in Australian galena samples by high resolution inductively coupled plasma mass spectrometry
Version 2 2023-06-23, 10:53
Version 1 2023-05-25, 23:18
journal contribution
posted on 2023-06-23, 10:53 authored by Ashley TownsendAshley Townsend, Z Yu, Peter McGoldrickPeter McGoldrick, JA HuttonHigh 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 1σ). 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.
History
Publication title
Journal of Analytical Atomic SpectrometryVolume
13Issue
8Pagination
809-813Department/School
Central Science Laboratory, CODES ARCPublisher
The Royal Society of ChemistryPublication status
- Published
Rights statement
Definitive version available at http://www.rsc.org/publishing/journals/JA/article.asp?doi=a801397gRepository Status
- Open