摘要
ＩＮＴＥＲＡＣＴＩＯＮＯＦＡＭＩＮＯＡＣＩＤＷＩＴＨＩＯＮＥＸＣＨＡＮＧＥＲＥＳＩＮⅢ．ＦＵＲＴＨＥＲＩＮＶＥＳＴＩＧＡＴＩＯＮＯＦＳＵＰＥＲＥＱＵＩＶＡＬＥＮＴＡＤＳＯＲＰＴＩＯＮ ＭＥＣＨＡＮＩＳＭＯＦＡＭＩＮＯＡＣＩＤＯＮＩＯＮＥＸＣＨＡＮＧＥ...
The adsorption isotherms of glycine, alanine and oxidized glutathion on strong acid cation and strong base anion exchange resins from aqueous solutions were measured and the superequivalent adsorptions of glycine and alanine observed. The infrared spectra of glycine adsorbed on the canon and the anion exchange resins, 001 × 7 and 201 × 7. were measured. From these results, it is concluded that foe amino acid adsorption on the ion exchange resin proceeds not only through ion exchange and proton transfer mechanisms, but also through aminecarboxylate interaction between foe ads orbed amino acid molecules, and theformation of second layer of amino acid molecules is the mechanism of superequivalent adsorption of amino acid. the carboxylate or amine groups of the first layer of amino acid molecules on the ion exchange resin act as the exchange sites for the second layer of amino acid molecules.
