Asymmetric adsorption of alanine by quartz powder from ethanol solution.

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概要

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• The asymmetric adsorption of the racemic alanine by the optically active quartz from ethanol solution at 8 °C was studied by the <SUP>14</SUP>C-tracer method and the newly developed <SUP>14</SUP>C-tracer·ninhydrin-colorimetry combination method. The preferential adsorption of L-alanine by levorotatory quartz (<I>l</I>-quartz) and D-alanine by dextrorotatory quartz (<I>d</I>-quartz) was confirmed. The asymmetric adsorptivity (<I>A</I><SUB>s</SUB>) falls in the range of 1.1–1.3, which is comparable with the value determined at −80 °C in the previous paper. The effects of water content in the ethanol solution and of the adsorption temperature upon the adsorption affinity of alanine to quartz were also measured. The cause for the asymmetric adsorption is discussed from the crystallographic point of view.

• 公益社団法人 日本化学会の論文

著者

• Morimoto Tetsuo

  Department Of Biomechanical Systems Ehime University

• Furuyama Shozo

  Department of Chemistry, Faculty of Science, Okayama University

• Hachiya Kinji

  Department of Chemistry, Faculty of Science, Okayama University

• Sawada Michio

  Department of Chemistry, Faculty of Science, Okayama University

• MORIMOTO Tetsuo

  Department of Bio-mechanical Systems, Faculty of Agriculture, Ehime University

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