用亚化学计量法测定微量铊  

DETERMINATION OF MICROGRAM QUANTITIES OF THALLIUM BY SUBSTOICHIOMETRIC

作　　者：李太华[1] 崔丽[1] 

机构地区：[1]北京师范大学化学系

出　　处：《北京师范大学学报（自然科学版）》1989年第1期68-70,共3页Journal of Beijing Normal University(Natural Science)

摘　　要：描述了以硫酸肼为还原剂,磷酸三丁脂(TBP)为萃取剂,用亚化学计量法测定微克量铊的方法.测定量在5～100μg范围内,测定铊的精确度>±1.6％.A method is studied for the determination of microgram quatities of thallium by substoichiometric reduction of Tl^(3+)with hydrazine sulfete. Separation of the two oxidation states by extraction of the former into TBP(tributyl phosphate). The experimental results show that thallium can be determined in the 5~100μg range with the error±1.6%.

关 键 词：铊 亚化学计量法 磷酸三丁酯 

分 类 号：O614.373[理学—无机化学]