The ion-exchange chromatography of imino derivatives of glycine.
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概要
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The resolution of the six imino derivatives of glycine (Gly) by ion-exchange chromatography is described. The imino compounds included iminodiacetonitrile (<B>1</B>), iminodiacetamide (<B>2</B>), iminodiacetic acid (<B>3</B>), α-(cyanomethylamino)acetamide (<B>4</B>), α-(cyanomethylamino)acetic acid (<B>5</B>), and α-(carbamoylmethylamino)acetic acid (<B>6</B>). A mixture of <B>1</B>–<B>6</B> was chromatographed along with Gly, glycinamide, aminoacetonitrile, and NH<SUB>3</SUB> with an automatic amino acid analyzer using Aminex A-4 resin column (0.25φ×50 cm) and sodium citrate buffers. When the initial buffer of pH 3.25 was changed to pH 6.50 15 min after beginning the analysis, these ten components were completely resolved. The analysis was completed in about 4.5 h. The stability of <B>1</B>, <B>4</B>, and <B>5</B> in aqueous media at room temperature was also studied.
- 公益社団法人 日本化学会の論文
著者
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Yoshida Hideyuki
Department of Chemical Engineering, Faculty of Engineering, Tokushima University
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Kawashiro Katsuhiro
Department of Chemical Engineering, Faculty of Engineering, Tokushima University
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Morimoto Shiro
Department of Chemical Engineering, Faculty of Engineering, Tokushima University
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