离子交换纤维分离混合氨基酸的性能研究  

STUDIES ON THE SEPARATION OF AMINO ACIDS MIXTURES ON ION EXCHANGE FIBERS

作　　者：符若文[1] 梁敏玲[2] 汤丽鸳[3] 雷勇强[2] 刘宁[2] 林远声[2] 

机构地区：[1]中山大学材料科学研究所教育部聚合物复合材料及功能材料重点实验室,广东广州510275 [2]教育部聚合物复合材料及功能材料重点实验室,广东广州510275 [3]中山大学材料科学研究所

出　　处：《高分子材料科学与工程》2005年第1期251-254,259,共5页Polymer Materials Science & Engineering

基　　金：863计划(2002AA305302)资助项目

摘　　要：对新研制的强酸型离子交换纤维PP-g-St-SO3H和两性离子交换纤维PP-g-4VP-SO3H分离混合氨基酸的性能进行研究,并与相应的离子交换树脂进行比较。结果表明在相同分离操作条件下,所制备的阳离子交换纤维PP-g-St-SO3H和两性离子交换纤维PP-g-4VP-SO3H对混合氨基酸的分离性能比通用732#树脂好。两性离子交换纤维还具有洗脱容易,洗脱液用量少的特点。在合适条件下,PP-g-St-SO3H纤维分离组氨酸和谷氨酸的分辨率达1.87。PP-g-4VP-SO3H两性纤维分离丙氨酸和谷氨酸的分辨率达2.69。The separation properties of amino acids mixtures on the new products of strong acid ion exchange fiber PP-g-St-SO_3H and amphoteric ion exchange fiber PP-g-4VP-SO_3H prepared by us were investigated and compared with that on relative ion exchange resin. The experimental results show that PP-g-St-SO_3H and PP-g-4VP-SO_3H have a higher separation efficiency than general used 732~# resin for the separation of amino acids mixtures under the same separation conditions. The amino acids on amphoteric ion exchange fiber are easy to be eluted and a small amount of elution reagent is therefor needed. In appropriate separation conditions, the separation efficiency of His-Glu mixture on PP-g-St-SO_3H can reach about (1.87). The separation efficiency of Ala-Glu mixture on PP-g-4VP-SO_3H can reach about (2.69).

关 键 词：强酸型离子交换纤维 两性离子交换纤维 混合氨基酸 分离 

分 类 号：TQ425.9[化学工程]