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<p>Plutonium exhibits complex and unique redox chemistry. Its detection and quantification is pivotal for understanding behavior in environmental systems, including for remediation, consequence management, and nuclear forensics analyses. The objective of this work was to determine whether microprecipitation is a viable, rapid method for sample preparation as compared to standard methods, when utilized in conjunction with separations to allow for parallel measurement of multiple radionuclides via different techniques. Here, neodymium fluoride microprecipitation was compared with electrodeposition and stippling, based on an evaluation of the peak full width at half maximum, recovery of Pu-242 after analysis by alpha spectrometry, and the time requirements for each method. These results highlight the robustness of microprecipitation methods under a range of conditions.</p>

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Rapid source preparation of plutonium for alpha spectrometry from complex matrices

  • 期刊论文

  • 发表日期：

    2026年3月13日

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  • Hilary P. Emerson,
  • Matthew RisenHuber,
  • José M. Veleta,
  • Caleb Allen,
  • Morgan Haney,
  • Samuel Emmons,
  • Staci Herman,
  • Amanda French,
  • Kirby Hobbs,
  • Chelsie Beck

摘要

Plutonium exhibits complex and unique redox chemistry. Its detection and quantification is pivotal for understanding behavior in environmental systems, including for remediation, consequence management, and nuclear forensics analyses. The objective of this work was to determine whether microprecipitation is a viable, rapid method for sample preparation as compared to standard methods, when utilized in conjunction with separations to allow for parallel measurement of multiple radionuclides via different techniques. Here, neodymium fluoride microprecipitation was compared with electrodeposition and stippling, based on an evaluation of the peak full width at half maximum, recovery of Pu-242 after analysis by alpha spectrometry, and the time requirements for each method. These results highlight the robustness of microprecipitation methods under a range of conditions.