Investigation of elements 107, bohrium (Bh) and 108, hassium (Hs) in sulfuric acid solutions according to the test experiments with their homologs

Authors: Szeglowski Z.¹; Lien D-T.²; Guseva L.I.³; Timokhin S.T.²; Kubica B.¹; Tikhomirova G.S.³

Source: Journal of Radioanalytical and Nuclear Chemistry, Volume 251, Number 2, February 2002 , pp. 311-314(4)

Publisher: Springer

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Abstract:

Ion-exchange behavior of Re and Os as homolgs of Bh and Hs, respectively, has been studied in the sulfuric acid media. The distribution coefficients of ^183Re and ^185Os as well as of other radionuclides between Dowex-50 and H_2SO_4 solutions were determined as a function of the acid concentration. It was shown, that cation-exchange column may be used for the separation of Os, Re and W from elements of III group, whereas anion-exchange column for their concentration from diluted sulfuric acid solutions. The 0.05M H_2SO_4 was used for continuous on-line separation of short-lived Os isotopes produced in the nuclear reactions: ^nat.Dy(^20Ne, xn)Os. Radionuclides of Os, Re and W were strongly sorbed on anion-exchange column only.

Language: English

Document Type: Regular paper

Affiliations: 1: H. Niewodniczanski Institute of Nuclear Physics Cracow, Poland 2: Joint Institute for Nuclear Research 141980 Dubna, Russia 3: Vernadsky Institute of Geochemistry and Analytical Chemistry Moscow, Russia

Publication date: 2002-02-01