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Ion exchange separation of trace amounts of uranium and thorium in tantalum for neutron activation analysis

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Abstract

Separation method of a few ppb of uranium and thorium in tantalum metal by ion exchange for neutron activation analysis was established. After dissolving tantalum metal by hydrofluoric acid, uranium and thorium were separated from tantalum using cation exchange resin column in 0.5M hydrofluoric −0.65M boric acid media. Both of the yields for uranium and thorium during separation were above 95% and the remaining amount of tantalum be lowered below 400 ng.

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Authors and Affiliations

  1. Japan Atomic Energy Research Institute, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan)

    Y. Sasaki, H. Takeishi & T. Adachi

  2. Irradiation Development Association, Tokai-mura, 319-11, Naka-gun, Ibaraki-ken, (Japan)

    K. Izawa

Authors
  1. Y. Sasaki
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  2. H. Takeishi
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  3. T. Adachi
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  4. K. Izawa
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Sasaki, Y., Takeishi, H., Adachi, T. et al. Ion exchange separation of trace amounts of uranium and thorium in tantalum for neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 139, 143–151 (1990). https://doi.org/10.1007/BF02060462

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  • DOI: https://doi.org/10.1007/BF02060462

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