The Separation of Copper Isotopes by Ion-exchange Chromatography
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概要
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A break-through experiment on the separation of copper isotopes was carried out through the use of a cation-exchange resin column. By analysing the experimental results, the approximate values of the single-stage (elementary) separation factors, <I>S</I><SUB>65</SUB><SUP>63</SUP>, were determined. The copper sulphate and copper chloride systems gave significant separation factors (<I>S</I><SUB>65</SUB><SUP>63</SUP>=1.0000<SUB>3</SUB>–1.0004<SUB>2</SUB>), but the copper nitrate system gave no isotope separation. These data were analysed in terms of the theory of the two-phase distribution of isotopes previously proposed by one of the present authors (Kakihana). The equilibrium coefficient for isotopic-exchange reaction by complex formation in an external solution (<I>K</I><SUB>1</SUB>=1.0001<SUB>5</SUB> for the copper sulphate system, and <I>K</I><SUB>1</SUB>=1.0005 for the copper chloride systems) was estimated.
- 公益社団法人 日本化学会の論文
著者
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KAKIHANA Hidetake
Research Department, the Energy Research Center
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Kanzaki Tadao
Research Laboratory of Nuclear Reactors, Tokyo Institute of Technology
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