Determination of ¹²⁹I in Fukushima Soil Samples by ICP-MS with an Octopole Reaction System

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  • OHNO Takeshi
    Department of Chemistry, Faculty of Science, Gakushuin University
  • MURAMATSU Yasuyuki
    Department of Chemistry, Faculty of Science, Gakushuin University
  • TOYAMA Chiaki
    Department of Chemistry, Faculty of Science, Gakushuin University
  • NAKANO Kazumi
    Agilent Technologies, Chemical Analysis, Japan Application Center
  • KAKUTA Shinichiro
    Agilent Technologies, Chemical Analysis, Japan Application Center
  • MATSUZAKI Hiroyuki
    Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo

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タイトル別名
  • Determination of <sup>129</sup>I in Fukushima Soil Samples by ICP-MS with an Octopole Reaction System

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抄録

A method was developed for the determination of 129I in soil samples that uses an ICP-MS equipped with an octopole reaction system. Oxygen was used as the reaction gas for reducing the background intensity of m/z 129, principally by 129Xe+. The contribution of polyatomic ions, such as 127IH2+, could be effectively corrected for by assuming a production ratio (127IH2+/127I+ = 3 × 10−8). The measured 129I/127I ratios in a NIST standard solution and Fukushima soil samples are consistent with the expected value within the analytical error. This method provides a powerful tool for investigating radioiodine contamination in Fukushima and elsewhere.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 29 (2), 271-274, 2013

    社団法人 日本分析化学会

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