Liquid Membrane Transport of Metal Cations by Using <I>N</I>-Acylamino Acids

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  • INOKUMA Seiichi
    Department of Synthetic Chemistry, Faculty of Technology, Gunma University
  • HAYASE Toru
    Department of Synthetic Chemistry, Faculty of Technology, Gunma University
  • KUWAMURA Tsunehiko
    Department of Synthetic Chemistry, Faculty of Technology, Gunma University

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  • <I>N</I>-アシルアミノ酸を担体とする金属イオンの液膜輸送
  • N アシル アミノサン オ タンタイ ト スル キンゾク イオン ノ エキマク

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Abstract

Long N-acylamino acids from various amino acids and dipeptides were examined as carriers for the passive and active transport of alkali (M+), alkaline earth (M2+), and heavy metal cations through a chloroform membrane.<BR>Some of the acids more effectively mediated the transport of M+ and M2+ than higher alkanoic acids. Transport efficiency depended greatly on the kind of cation and introduced amino acid residue in the following manner : alanine and phenylalanine were effective for both M+- and M2+-transport and glycylglycine and alanylalanine, for M+-transport. Derivatives of sarcosine and glycine were found quite useful as carriers for the selective transport of heavy metal cations.

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