High precision lead isotope ratio measurements by multicollector-ICP-MS in variable matrices

Sara Ehrlich; Zeev Karpas; Lina Ben-Dor; Ludwik Halicz

doi:10.1039/b102454j

High precision lead isotope ratio measurements by multicollector-ICP-MS in variable matrices

Sara Ehrlich, Zeev Karpas, Lina Ben-Dor, Ludwik Halicz

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

It is well known that the use of thallium as an internal standard for high precision and high accuracy measurement of lead isotopic ratios can correct for mass discrimination and instrumental drift. The present work demonstrates that matrix effects can also be accounted for when a multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS) is used. The precision (2σ) obtained for the ²⁰⁷Pb/²⁰⁶Pb and ²⁰⁸Pb/²⁰⁶Pb ratios was 30 and 40 ppm, respectively, even in samples with total dissolved solid (TDS) levels of up to 700 mg L^-1.

Original language	English
Pages (from-to)	975-977
Number of pages	3
Journal	Journal of Analytical Atomic Spectrometry
Volume	16
Issue number	9
DOIs	https://doi.org/10.1039/b102454j
State	Published - 2001

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High precision lead isotope ratio measurements by multicollector-ICP-MS in variable matrices

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