摘要
研究巯基棉的快速制备新技术及汞铋、铜、铅、镉5种离子同时在巯基棉上富集和洗脱条件。洗脱液中的离子采用计时电位溶出法测定,摸索出消除汞,铜记忆效应的方法,使测定重现性良好。5种离子的回收率在90％～110％之间。
The new preparative technique of sulfhydryl cotton and the conditions of enrichment and elution of Hg, Bi, Cu, Pb, Cd with sulfhydryl cotton were discussed. The five ions in elutriant were determined by chronopotentiometric stripping analysis, and the method to eliminate the memory effect of Hg, Cu was found out. The recoveries of five ions were between 90%～110%.
关键词
疏基棉
富集
汞
铋
铜
铅
镉
sulthydryl cotton,enrichment, chronopotentiometric stripping, mercury,bismuth,copper, lead,cadmiun
