Strontium Isotope Effects in Ligand Exchange Reaction
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概要
- 論文の詳細を見る
Strontium isotope effects in ligand exchange reaction were investigated. Strontium chloride was extracted into dicyclohexano-18-crown-6/chloroform from the aqueous phase of 4–9 M HCl/H2O. The distribution ratios of strontium increased with HCl concentrations. Strontium extracted into the organic phase had a complex form of Sr2+-crown, Sr2+-crown-HCl or Sr2+-crown-(HCl)2 depending on the concentration of hydrochloric acid in the aqueous phase. Isotope enrichment factors changed from ε84–88=0.0075 to ε84–88=0.0263. The maximum, ε84–88=0.0263 was found at the complex form of Sr-crown-(HCl)0.5 in the organic phase, where Sr-crown and Sr-crown-HCl coexisted at a ratio of 1:1. The enrichment factor dependency on HCl concentrations was found to be brought about from complex forms in the organic phase; Sr-crown in the diluted HCl system, Sr-crown-HCl in the medium HCl system, and Sr-crown-(HCl)2 in the concentrated HCl system.
- 社団法人 日本原子力学会の論文
- 2002-04-25
著者
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Fujii T
Research Reactor Institute Kyoto University
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Fujii Toshiyuki
Research Reactor Institute Kyoto University
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NISHIZAWA Kazushige
Department of Nuclear Engineering, Graduate School of Osaka University
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SHIBAHARA Yuji
Department of Nuclear Engineering, Osaka University
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TAKAISHI Hitoshi
Department of Nuclear Engineering, Graduate School of Osaka University
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Nishizawa K
Department Of Nuclear Engineering Osaka University
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Nishizawa Kazushige
Department Of Nuclear Engineering Graduate School Of Engineering Osaka University
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Shibahara Yuji
Department Of Nuclear Engineering Osaka University
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Takaishi Hitoshi
Department Of Nuclear Engineering Graduate School Of Osaka University
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FUJII Toshiyuki
Research Laboratories, Fujisawa Pharmaceutical Co., Ltd.
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