以双(2,4,4-三甲基戊基)膦酸为流动载体的乳状液膜分离汞与常见离子的研究  

Separation of Mercury( Ⅱ ) Through Emulsion Liquid Membrane With Bis(2,4,4-trimethylpentyl)phosphonic Acid as Carrier

作　　者：邹长英 李光熹 李克安[2] 童沈阳[2] 

机构地区：[1]山西职工医院化学教研室,太原030012 [2]北京大学化学系,北京100871

出　　处：《分析化学》1994年第11期1151-1154,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金资助课题

摘　　要：用双(2,4,4-三甲基戊基)膦酸-Span 80-甲苯乳状液膜体系研究了汞的迁移行为,确定了用此种乳状液膜迁移分离汞的适宜条件,汞在5min内可迁移96％以上。在同样条件下,一些常见过渡金属离于如Co^(2+)、Ni^(2+)、Cu^(2+)、Cd^(2+)等通过此乳状液膜的迁移率很低,因此汞可与这些元素得到很好的分离。The transport of Hg( Ⅱ ) through the emulsion liquid membrane of bis (2,4, 4-trimethylpentyl)phosphonic acid-Span 80-toluene that transporting Hg( Ⅱ) completely and rapidly was carried out under optimal experimental conditions. The transport rate in 5 min is 96%. In this case, many co-existed ions, such as Co?Ni?Cu?Cd?Pb etc. can not transport through this emulsion liquid membrane. So Hg( Ⅱ ) can be separated from these ions satisfactorily.

关 键 词：乳状液膜 膦酸 迁移 分离 汞 

分 类 号：O614.243[理学—无机化学]