谷氨酸在乳状液膜中的迁移行为

谷氨酸在乳状液膜中的迁移行为

摘要： 用氯化三辛基·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。 Abstract： The transport of glutamic acid through the surfactant liq uid membrane of trioctyl (mono) methyl ammonium chloride(Aliquat336)?Span 80-toluene has been studied. The optimal experimental conditions for transport of gl utamic acid with high efficiency and high speed were obtained. The conditions we re that membrane phase was 0.020 mol/L Aliquat 336+3%(?W／V?）Span80+Tolu ene; Outer phase was 5×10-4 mol/L glutamic acid and Ph=9.3；Inner pha se was 0.05 mol/L HCl. The transport rate of glutamic acid reached 93% in 2 min of transport time. The phenylalanine was also transported at the optimal transpo rt conditions of glutamic acid. The transport rates of Glycine and basic amino a cids were lower. This method can be used for extraction and separation of micro amount of amino acids. 作 者： 邹长英    张红    徐变珍    Zou Changying    Zhang Hong    Xu Bianzhen   作者单位： 邹长英,徐变珍,Zou Changying,Xu Bianzhen(山西职工医学院,)

张红,Zhang Hong(Shanxi Medical College for Continuing Education,) 

期 刊： 分析化学  ISTICSCIPKU   Journal： FENXI HUAXUE  年，卷(期)： 2001, 29(6)  分类号：   关键词： 乳状液膜    氯化三辛基·甲基铵    谷氨酸    迁移行为   

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