谷氨酸在乳状液膜中的迁移行为  

Transport of Glutamic Acid at Emulsion Liquid Membrane System

作　　者：邹长英[1] 张红[1] 徐变珍[1] 

机构地区：[1]山西职工医学院,太原030012

出　　处：《分析化学》2001年第6期682-684,共3页Chinese Journal of Analytical Chemistry

摘　　要：用氯化三等基·甲基铵（Ａｌｉｑｕａｔ ３３６）－Ｓｐａｎ８０－甲苯制成的乳状液膜体系对谷氨酸的迁移行为进行了研究，２ ｍｉｎ的迁移率可达９３％。在谷氨酸的最佳迁移条件下，油溶性好的苯丙氨酸迁移率较高，但油溶性低的甘氨酸和碱性氨基酸的迁移率明显较低。此法适用于微量氨基酸的提取和分离。The transport of glutamic acid through the surfactant liquid membrane of trioctyl (mono) methyl ammonium chloride (Aliquat336)-Span 80-toluene has been studied. The optimal experimental conditions for transport of glutamic acid with high efficiency and high speed were obtained. The conditions were that membrane phase was 0.020 mol/L Aliquat 336 + 3% (W/V)Span80 + Toluene; Outer phase was 5 × 10-4 mol/L glutamic arid and pH = 9 .3; Inner phase was 0.05 mol/L HCI. The transport rate of glutamic acid reached 93% in 2 min of transport time. The phenylalanine was also transported at the optimal transport conditions of glutamic acid. The transport rates of Glycine and basic amino acids were lower. This method can be used for extraction and separation of micro amount of amino acids.

关 键 词：乳状液膜 氯化三辛基·甲基铵 氨基酸 谷氨酸 迁移行为 提取 分离 

分 类 号：O657.3[理学—分析化学]