流动载体对以二-(2-乙基己基)磺化琥珀酸钠为表面活性剂的W/O型微乳状液迁移痕量铜(Ⅱ)的影响  

Effect of Mobile Carriers on the Transport of Copper (Ⅱ )Through the Diethythexyl Sodium Sulphasuccinate-n -Heptane W/O Microemulsion

作　　者：韩立新[1] 李克安[1] 童沈阳[1] 

机构地区：[1]北京大学化学与分子工程学院,北京100871

出　　处：《分析化学》1998年第7期880-882,共3页Chinese Journal of Analytical Chemistry

摘　　要：研究了一些流动载体对以二－（２－乙基己基）磺化琥珀酸钠（ＡＯＴ）为表面活性剂、正庚 烷为油性溶剂的Ｗ／Ｏ型微乳状液在迁移痕量金属离子Ｃｕ２＋的影响。实验结果表明，１－（２－吡 啶偶氮）－２萘酚（ＰＡＮ）能大大促进 Ｃｕ２＋的迁移，使其迁移率从 ７０％上升到 １００％。用高盐度 溶液对微乳进行破乳，得到 Ｃｕ２＋的富集倍数为 ６，回收率约为 １００％。Some mobile carriers were separately added in the water-in-oil (W/O) microemulsions prepared by using the surfactant diethylhexyl sodium sulphasuccinate (AOT) and the oil solvent nheptane, which were used to transport and enrich trace Cu2+. The experimental results show that Cu2+ has much higher transport ratio(l00% ) when the mobile carrier 1 - (2- pyridylazo ) -2- naphthol is added than that of Cu2+ (70% ) when the carrier is absent in the microemulsions. Moreover, Cu2+ has high enrich times(6 times) and recovery ratio(l00% ) under given conditions of de-emulsion.

关 键 词：迁移 富集 分离 微乳液 AOT 铜离子 

分 类 号：O614.121[理学—无机化学] O648.23[理学—化学]