Nitrogen Isotope Separation with Displacement Chromatography Using Cryptand Polymer
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概要
- 論文の詳細を見る
Chromatographic nitrogen isotope separation was experimentally studied in a break through manner. A solution of 0.4 mol·dm−3 NH4Cl in methanol was continuously fed at 0.12, 0.25 and 0.50cm3·min−1 into a glass tube packed with cryptand(2B,2,1) polymer. The temperature of column was kept constant at 293 K by passing temperature-controlled water through a jacket. Nitrogen gas was generated from the effluent reacted with Ca(ClO)2 solution after removing methanol by vacuum distillation, and the ratio of 14N15N to 14N14N was measured with a mass spectrometer (Finnigan MAT252). NH4Cl concentrations in the samples were gravimetrically determined. An enrichment factor, which is defined as an equilibrium separation factor minus unity was determined to be 0.0025±0.0013. A HETP (height equivalent to a theoretical plate) was evaluated 0.5±0.2 cm at 14 cm·h−1. This is the first report on nitrogen isotope separation with cryptand polymer.
- 一般社団法人 日本原子力学会の論文
- 2002-04-25
著者
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Sugiyama Hiroshi
Department of Chemistry, Graduate School of Science Kyoto University
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YAMAMOTO ICHIRO
Department of Pathology, Kitasato University School of Hygienic Sciences
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Enokida Youichi
Department Of Nuclear Engineering Nagoya University
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Sugiyama Hiroshi
Department Of Chemistry Graduate School Of Science Kyoto University
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Yamamoto Ichiro
Department Of Chemistry Graduate School Of Science The University Of Tokyo
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Sugiyama Hiroshi
Department Of Chemistry Faculty Of Science
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Sugiyama Hiroshi
Department Of Nuclear Engineering Nagoya University
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