Jump to main content
Jump to site search

Issue 4, 2007
Previous Article Next Article

Precise determination of Pb isotope ratios by simple double spike MC-ICP-MS technique without Tl addition

Author affiliations

Abstract

A double-spike multicollector ICP-MS (DS-MC-ICP-MS) technique for Pb isotope analysis without Tl addition is established and its analytical performance is examined in detail. This simple DS-MC-ICP-MS technique using 20 ng ml−1 gave averages of 16.9417, 15.4988 and 36.7196 with reproducibilities of 0.007, 0.008 and 0.009% (RSD, n = 35), respectively, for 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb in NIST 981 solution, corresponding to consumption of 4 ng of Pb in a pair of spiked and non-spiked measurements. The average is consistent with those obtained by previous studies by DS-TIMS and DS-MC-ICP-MS with Tl addition. The reproducibility (RSD %) of 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb improves from 0.26, 0.54 and 0.69% to 0.0022, 0.0030 and 0.0029% as the Pb consumption during analysis increases from 20 pg to 11 ng. The reproducibility with 11 ng is similar to or even better than those by DS-TIMS, MC-ICP-MS with Tl addition, or with DS-Tl addition. The accuracy of the simple DS-MC-ICP-MS technique for Pb, including the column chemistry, is further confirmed by analysis of actual silicate sample, JB-3.

Graphical abstract: Precise determination of Pb isotope ratios by simple double spike MC-ICP-MS technique without Tl addition

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Nov 2006, accepted on 22 Dec 2006 and first published on 16 Jan 2007


Article type: Technical Note
DOI: 10.1039/B616021B
Citation: J. Anal. At. Spectrom., 2007,22, 407-410
  •   Request permissions

    Precise determination of Pb isotope ratios by simple double spike MC-ICP-MS technique without Tl addition

    A. Makishima, B. Nagender Nath and E. Nakamura, J. Anal. At. Spectrom., 2007, 22, 407
    DOI: 10.1039/B616021B

Search articles by author

Spotlight

Advertisements