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April 1, 2026Open Access

Precise lead isotope analysis using Multiple Collector-Inductively Coupled Plasma-Mass Spectrometry (MC-ICP-MS): Analytical technique and evaluation of mass fractionation during Pb separation

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Authors

純木純一 木村菜中菜都子 中野

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Overview

Analytical technique demonstrates precise Pb isotope ratios in samples, suggesting improved accuracy in measurements.

Key Points

  • The aim is to develop a precise method for analyzing lead isotopes using MC-ICP-MS and to evaluate mass fractionation during Pb separation.
  • Utilization of an isobaric overlap correction for 204Hg on 204Pb.
  • Application of external mass fractionation correction using 203Tl/205Tl.
  • Implementation of a mass-dependent mass fractionation correction using a sample-standard bracket method.
  • Conducting single column-single bead anion exchange for Pb purification.
  • Collecting larger volumes of elutant to reduce Pb isotope fractionation.
  • Achieved an external reproducibility of Pb isotope ratios of less than 170 ppm.
  • Identified fractionation during the anion exchange procedure, affecting the validity of Pb isotope data.
  • No measurable fractionation was found when a large volume of elutant was collected in initial column separation.
  • Single-step Pb separation suffices for MC-ICP-MS, allowing rapid sample throughput of up to 15 samples a day.

Cite This Study

木村 et al. (2004) studied this question.

synapsesocial.com/papers/69cd7b475652765b073a92bfhttps://doi.org/10.24568/6140
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Lead isotope analysis using TIMS following single column-single bead Pb separation2003
  2. 2Lead Isotope Fingerprinting of Nanoscale Mineral Particles via Single Particle Inductively Coupled Plasma Mass Spectrometry2026
  3. 3High precision Pb Isotope ratio analysis of wet depositions with low Pb concentration using multi-collector type inductively coupled plasma mass spectrometry and solid phase extraction2025 · 1 citations
  4. 4Fully automated dual-column purification procedure for Pb from biological materials for subsequent high-precision isotopic analysis2025 · 3 citations
  5. 5An improved method of Tl purification for high precision measurement of Tl isotopes by MC-ICP-MS2026