作者:Katsuhiro Kawashiro、Shiro Morimoto、Hideyuki Yoshida
DOI:10.1246/bcsj.56.792
日期:1983.3
The resolution of the six imino derivatives of glycine (Gly) by ion-exchange chromatography is described. The imino compounds included iminodiacetonitrile (1), iminodiacetamide (2), iminodiacetic acid (3), α-(cyanomethylamino)acetamide (4), α-(cyanomethylamino)acetic acid (5), and α-(carbamoylmethylamino)acetic acid (6). A mixture of 1–6 was chromatographed along with Gly, glycinamide, aminoacetonitrile, and NH3 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 1, 4, and 5 in aqueous media at room temperature was also studied.
离子交换色谱法对甘氨酸(Gly)的六种亚氨基衍生物的分离进行了描述。这些亚氨基化合物包括亚氨基二乙腈(1)、亚氨基二乙酰胺(2)、亚氨基二乙酸(3)、α-(氰甲基氨基)乙酰胺(4)、α-(氰甲基氨基)乙酸(5)和α-(碳酰甲基氨基)乙酸(6)。混合物1-6与甘氨酸、甘氨酰胺、氨基乙腈和NH3一起,在自动氨基酸分析仪上使用Aminex A-4树脂柱(0.25φ×50 cm)和柠檬酸钠缓冲液进行色谱分析。当分析开始15分钟后,初始的pH 3.25缓冲液改为pH 6.50时,这十种成分完全分离。分析过程大约需要4.5小时。还研究了1、4和5在水溶液中室温下的稳定性。