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A study of ion-exchange behavior of Pb in dilute HBr solutions, aimed to evaluate the possibility of on-line isolation of element 114. 228Ra-212Pb generator

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Radiochemistry Aims and scope

Abstract

Ion-exchange behavior of Pb (homolog of element 114), Ra, some actinides and Hf (homolog of Rf) in aqueous and aqueous-methanolic solutions of HBr was studied as influenced by the solution composition, acid concentration, type of ion exchanger, and other factors. The best conditions for Pb separation from other radionuclides with a high decontamination factor (≥105−106) on a cation exchanger and the conditions for its preconcentration from dilute solutions on an anion exchanger in the continuous (on-line) mode were determined. Based on the operation principle of a radioisotope generator containing a cation exchanger and HBr solutions, an efficient procedure for repeated separation of 212Pb (T 1/2 = 10.6 h) from its parent radionuclides (228Ra, 228Ac, and 228Th) was developed. The possibility of on-line isolation of element 114 formed by the 242Pu(48Ca, 3n) nuclear reaction and its detection by long-lived decay product [267Rf (T 1/2 ∼ 3.3 h)] was demonstrated.

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Authors and Affiliations

  1. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, Russia

    L. I. Guseva

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  1. L. I. Guseva
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Original Russian Text © L.I. Guseva, 2007, published in Radiokhimiya, 2007, Vol. 49, No. 1, pp. 84–88.

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Guseva, L.I. A study of ion-exchange behavior of Pb in dilute HBr solutions, aimed to evaluate the possibility of on-line isolation of element 114. 228Ra-212Pb generator. Radiochemistry 49, 92–96 (2007). https://doi.org/10.1134/S106636220701016X

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  • DOI: https://doi.org/10.1134/S106636220701016X

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