• P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Separation of Plutonium Oxidation States by Ion Chromatography

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2001, v.14 no.1, pp.28-33
Kim, Seung Soo
Jun, Kwan Sik
Kang, Chul Hyung
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Abstract

The ion chromatography for the separation of plutonium species which are suggested to be <TEX>$Pu^{3+}$</TEX>, <TEX>$Pu^{4+}$</TEX>, <TEX>$PuO_2{^+}$</TEX> and <TEX>$PuO_2{^{2+}}$</TEX> in natural water was studied. Two separation methods were performed; 1) two-column method containing each of <TEX>$SiO^-$</TEX> and SiO-<TEX>$SO_3{^-}$</TEX> cation exchanger, 2) IC with AG11 column and the eluent of oxalate/nitric acid. Separation conditions for <TEX>$Eu^{3+}$</TEX>, <TEX>$Th^{4+}$</TEX>, <TEX>$NpO_2{^+}$</TEX>, <TEX>$UO_2{^{2+}}$</TEX> in place of plutonium species were acquired from preliminary tests. When these conditions were applied to separate the plutonium species, two-column method was separated them successfully. However, the IC method with oxalate eluent was difficult in the separation of plutonium species due to the change of <TEX>$Pu^{3+}$</TEX> and <TEX>$PuO_2{^{2+}}$</TEX> to <TEX>$Pu^{4+}$</TEX> and <TEX>$PuO_2{^+}$</TEX> respectively.

keywords
plutonium, separation, chromatography, ion exchanger, oxalate


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