微晶酚酞分离富集分光光度法测定痕量铋  

Spectrophotometric Method for The Determination of Trace Bismuth After the Separation and Enrichment with Microcrystalline Phenolphthalein

作　　者：樊雪梅[1,2] 

机构地区：[1]陕西省尾矿资源综合利用重点实验室(商洛学院),陕西商洛726000 [2]商洛学院化学与化学工程系,陕西商洛726000

出　　处：《商洛学院学报》2013年第2期33-35,共3页Journal of Shangluo University

基　　金：陕西省尾矿资源综合利用重点实验室资助;陕西省科技统筹创新工程计划项目(2012KTDZ02-02-02)

摘　　要：pH 1.0时,Bi(Ш)与PAN发生螯合反应形成的Bi(Ш)-PAN可被吸附在微晶酚酞上,试验了影响富集率的各个参数,在最佳富集条件下,Bi(Ш)的富集率可达98%,用6.0 mol·L-1的HCl解吸后用分光光度法测定其含量。该法用于水样中铋含量的测定,结果令人满意。In pH 1.0, Bi（m） can react with PAN to form of Bi（III）-PAN which can be adsorbed on microcrystalline phenolphthalein, various factors influencing the enrichment efficiency were studied. In the optimum condition, the enrichment efficiency of Bi（IIl） was 98%. After elution by 6.0 mol/L HC1, the bismuth was determination by spectrophotometric method. This method was applied to the determination of bismuth in water samples with satisfatory results.

关 键 词：分离富集 Bi(UI) PAN 微晶酚酞 

分 类 号：O614.532[理学—无机化学]