Zinc Isotope Separation by Ligand Exchange Chromatography Using Cation Exchange Resin.

DOI Web Site 5 Citations
  • BAN Yasutoshi
    Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
  • AIDA Masao
    Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
  • NOMURA Masao
    Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
  • FUJII Yasuhiko
    Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

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  • 陽イオン交換樹脂を用いた配位子交換クロマトグラフ法による亜鉛同位体分離

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Zinc isotope effects in Zn-EDTA ligand exchange were studied by using a macroporous strongly acidic cation exchange resin packed in columns. Both front and rear boundaries of a zinc band were sharp after 28m migration at 60°C. Zinc isotope ratios of 66Zn/64Zn were measured by a mass spectrometer with surface ionization source. The enrichment of the heavier isotope, 66Zn, was found at the front band boundary region. Isotope separation coefficient per unit mass, ε/ΔM, and height equivalent to a theoretical plate were calculated as 8.0×10-5 and 0.9mm, respectively. Discussion is extended to the profile analysis on the chromatographic isotope separation. The results were compared with previously reported isotope effects in the ligand exchange reaction of other elements.

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