活性炭吸附分离-8-羟基喹啉紫外分光光度法测定铊  

8-Hydroxyquinoline ultraviolet spectrophotometric determination of thallium(Ⅲ) using activated carbon as separation material

作　　者：吴惠明[1] 李锦文[1] 陈永亨[1] 

机构地区：[1]广州大学化学化工学院,广东广州510006

出　　处：《化学试剂》2006年第9期547-548,574,共3页Chemical Reagents

基　　金：国家自然科学基金(20477007);广东省自然科学重点资金(36210)资助

摘　　要：研究并改进了在HCl介质中用活性炭吸附铊及草酸胺解吸铊的分离方法，使铊与干扰元素分离富集。以8-羟基喹啉为配合剂与铊（Ⅲ）形成的配合物，在λ=230nm处有最大吸收，11（Ⅲ）质量浓度在0～24μg／25mL范围内符合比耳定律。回收率在96．5％～101．8％之间。The separation of thallium has been studied and improved in this paper. Thallium was separated from other elements by using activated carbon for adsorption and （NH）2C2O4 for desorption in HCl medium. The amounts of thallium combined with 8-hydroxyquinoline in 0 ～ 24μg/25 mL obeyed Beer＇s law at λ = 230 nm. The recoveries from water samples were 96.5% ～ 101.8%.

关 键 词：铊 活性炭 分离富集 8-羟基喹啉 紫外分光光度法 

分 类 号：O614.37[理学—无机化学]