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May 1, 2026Analytical Chemistry2 citations

Measurement of the Isotopic Composition of Uranium in Geological Samples by MC-ICP-MS Using a TOPO-Based Extraction Chromatographic Protocol

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JGJia-Kai GuoQZQiaohui ZhongMLMei-ju Li

Key Points

  • This research aims to improve the measurement of uranium isotopic composition using a new extraction chromatographic protocol.
  • Utilized MC-ICP-MS for isotope measurement.
  • Employed a TOPO-based extraction chromatographic protocol for high-purity recovery of uranium.
  • Compared results to published data for validation.
  • Achieved U values consistent with published data, indicating method accuracy.
  • Demonstrated quantitative recovery of high-purity uranium.
  • Provided high-precision isotope determinations, offering a reliable alternative to double spike techniques.

Abstract

U values in excellent agreement with published data, demonstrating the accuracy and robustness of the protocol. Overall, this protocol enables the quantitative recovery of high-purity U and high-precision U isotope determination, providing an alternative to the double spike technique and promoting its wider application in geochemistry.

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Cite This Study

Guo et al. (2026) studied this question.

synapsesocial.com/papers/69f44223967e944ac5565f59https://doi.org/10.1021/acs.analchem.6c00090
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