水中痕量镉的准液膜富集  

Enrichment of Trace Cadmium in Aqueous Solution by Quasi-Liquid membrane

作　　者：李金昶[1] 于惠芬[2] 王云平[2] 李红玫[2] 徐书绅[2] 陈恒华[2] 

机构地区：[1]东北师范大学分析测试中心 [2]长春师范学院化学系,长春130032

出　　处：《分析化学》1995年第7期805-808,共4页Chinese Journal of Analytical Chemistry

基　　金：有色系统高校科研基金资助项目

摘　　要：准液膜法是在液膜法基础上提出的新分离方法,它保持了液膜法分离富集的高效能,但省去了液膜法的制乳与破乳过程,使操作更为简便易行.本文用此法富集了水及废水中痕量镉,富集倍数可达230倍。The quasi-liquid membrane (QLM) method is a new techique advanced on the basis of conventional liquid membrane (CLM). QLM retains the high efficiency of CLM in separation and enrichment but eliminates the procedures of emulsification and demulsification. Therefore, the operation of QLM is simple than that of CLM. The method has been applied to the enrichment of trace cadmium in aqueous solution. The enrichment increased about 230-fold in comparison with other, the recovery of cadmium was over 97%.

关 键 词：准液膜 富集 镉 分离 废水 

分 类 号：O614.242[理学—无机化学] X132[理学—化学]