AOT-正庚烷微乳状液的制备及迁移痕量金属离子的研究  

Studies on the Preparation of AOT-n-Heptane Microemulsion and Transport of Metal Ions Through the Microemulsion System

作　　者：韩立新[1] 李克安[1] 童沈阳[1] 

机构地区：[1]北京大学化学系,北京100871

出　　处：《高等学校化学学报》1997年第5期760-763,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：研究了以二－（2－乙基已基）磺化琥珀酸钠为表面活性剂、以正庚烷为油性溶剂的W／O型微乳状液的形成及迁移痕量金属离子的行为，确定了制乳和迁移的适宜条件．在此条件下，一些金属离子可较完全地从水相或料相迁移到微乳相中，显示出较高的迁移率．The water-in-oil(W/0) microemulsions have been prepared by using the surfactant diethylhexyl sodium sulphasuccinate and the oil solvent n-heptane. The transporting behavior of metal ions, such as Cu2+, Zn2+, Pb2+, Cd2+, Hg2+, Co2+, Ni2+, Cr3+ and Cr(VI ),has been studied from the water phases or feed phases into the microemulsion phases. The optimum conditions of preparing microemulsions and transporting metal ions have been obtained. The experimental results show that all of these metal ions studied except Cr(VI )have high transport ratios under these conditions.

关 键 词：金属离子 迁移 AOT 正庚烷 微乳液 

分 类 号：O658.9[理学—分析化学] O648.23[理学—化学]