文献类型：期刊文献

中文题名：磷酸二异辛酯微乳液体系萃取组氨酸的分配系数

英文题名：Extraction Equilibrium of Histine in D2EHPA Microemulsion

作者：翁连进[1];金浩[1];宋道云[1];江体乾[1]

机构：[1]华东理工大学化工所流变学研究室

年份：1998

卷号：12

期号：3

起止页码：242

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;EI(收录号：1998124500987);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：萃取;组氨酸;分配系数;微乳液;磷酸二异辛酯

外文关键词：Extraction, Microemulsion histine, Distribution coefficient

摘要：测定了若干个盐浓度下组氨酸在磷酸二异辛酯（Ｄ２ＥＨＰＡ）微乳状液中萃取的分配系数随ｐＨ值的变化关系，利用萃取平衡关系回归出组氨酸在水溶液中的两种主要离子的分配系数随盐浓度变化及其关系式中的参数，从而建立了组氨酸在本萃取体系中分配系数随ｐＨ值及盐浓度变化的数学关系式。
The dependents on pH value and ion strength of extraction equilibtrium of histine in the D2EHPA microemulsion aqueous system were studied. Distribution coeffecients of the main two ionic species of histine were calculated by material balance. Considering the effect of ion strength on the two ionic species activities, distribution equilibrium dependent on ion strength was established and parameters were also obtained. The results shows that the general distribution coeffecient can be calculated easily.