Temperature Dependence of Isotope Effects of Barium Using a Crown Ether
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概要
- 論文の詳細を見る
Barium isotopes were fractionated in a liquid-liquid extraction system using a crown ether of dicyclohexano-18-crown-6. The temperature dependence of isotope enrichment factors was investigated at 273.2 to 323.2 K. Within the experimental error, the isotope effects appeared to be ruled by the conventional mass-dependent theory. The maximum isotope effect was observed at 323.2 K, whose isotope enrichment factor for unit mass difference was εu=−0.00044±0.00013. Relation between εu and 1⁄T showed a characteristic curve, but was deviated from a temperature-dependent theory of ε=a⁄T+b⁄T2. The change in the coefficient a in the present system was discussed by considering the obtained results.
- 社団法人 日本原子力学会の論文
- 2002-04-25
著者
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WATANABE Kazuo
Department of Pathology, Fukushima Medical University Hospital
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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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INAGAWA JUN
Department of Environmental Sciences
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Inagawa J
Japan Atomic Energy Res. Inst. Ibaraki Jpn
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WATANABE Kazuo
Japan Atomic Energy Agency
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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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HAMANISHI Eizo
Department of Nuclear Engineering, 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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Hamanishi Eizo
Department Of Nuclear Engineering Osaka University
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Watanabe Kazuo
Department Of Pathology Fukushima Medical University Hospital
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Watanabe Kazuo
Department Of Environmental Sciences Japan Atomic Energy Research Institute
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Watanabe Kazuo
Department Of Biology Faculty Of Science Osaka University
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WATANABE Kazuo
Research Group for Analytical Science, Division of Environment and Radiation Sciences, Japan Atomic Energy Agency
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FUJII Toshiyuki
Research Laboratories, Fujisawa Pharmaceutical Co., Ltd.
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