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Development of radiochemical analysis of uranium isotopes in highly contaminated soil samples

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Abstract

An accurate and reliable analytical technique of uranium isotopes in highly contaminated soil samples was developed and applied to the IAEA reference samples. The conventional TBP method of uranium isotopes is insufficient to completely purify uranium from actinides such as plutonium and americium isotopes in highly contaminated soil samples. For overcoming the demerits of the conventional TBP extraction method, sample materials were decomposed with HNO3 and HF, and uranium isotopes were purified by TBP extraction and anion exchange columns and extraction chromatography. Among the purifying methods of uranium, with a TRU Spec resin column after TBP solvent extraction, uranium was completely separated from the radionuclides in a highly contaminated samples. With the modified TBP extraction method, it was found that the concentrations of uranium isotopes were consistent with the reference values reported by the IAEA.

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Authors and Affiliations

  1. Nuclear Environment Research Division, Korea Atomic Energy Research Institute, P.O. Box 305-353, Yusung, Taejeon, Korea

    M. H. Lee & C. W. Lee

Authors
  1. M. H. Lee
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  2. C. W. Lee
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Lee, M.H., Lee, C.W. Development of radiochemical analysis of uranium isotopes in highly contaminated soil samples. Journal of Radioanalytical and Nuclear Chemistry 248, 439–443 (2001). https://doi.org/10.1023/A:1010652731005

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  • DOI: https://doi.org/10.1023/A:1010652731005

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