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Separation of magnesium isotopes by chemical exchange with a polymer-bound azacrown compound

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Abstract

The chromatographic separation of magnesium isotopes was investigated by chemical exchange with the recently synthesized 1-oxa-4,7,10,13-tetraazacyclopentadecane-4,7,10,13-tetramerrifield peptide resin [N4O·4M]. The capacity of the novel N4O-4 Merrifield ion exchanger was 1.0 meq/g dry resin. The heavier isotope26Mg concentrated in the resin phase, while the lighter isotopes24Mg, and25Mg are enriched in the fluid phase. The maximum separation factors α, for25Mg−26Mg and24Mg−26Mg were found to be 1.048 and 1.022, respectively, at 20.0±0.02 °C with 2.0 M ammonium chloride solution as an eluent.

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Authors and Affiliations

  1. Department of Chemistry, Physical Chemistry Laboratory, College of Natural Sciences, Chungbuk National University, 361-763, Cheongju, Republic of Korea

    D. W. Kim, B. G. Kim & Y. K. Jeong

  2. Department of Chemistry Education, College of Education, Chungbuk National University, 361-763, Cheongju, Republic of Korea

    C. S. Kim

  3. Department of Chemistry, Konyang University, 320-800, Nonsan, Republic of Korea

    J. S. Kim

  4. Division of Chemical Analysis, Korea Atomic Energy Research Institute, 305-606, Daejon, Republic of Korea

    Y. S. Jeon

Authors
  1. D. W. Kim
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  2. B. G. Kim
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  3. C. S. Kim
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  4. Y. K. Jeong
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  5. J. S. Kim
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  6. Y. S. Jeon
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Kim, D.W., Kim, B.G., Kim, C.S. et al. Separation of magnesium isotopes by chemical exchange with a polymer-bound azacrown compound. J Radioanal Nucl Chem 222, 253–255 (1997). https://doi.org/10.1007/BF02034281

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  • DOI: https://doi.org/10.1007/BF02034281

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