用2-(4,5-二甲基-2-噻唑偶氮)-5-二甲氨基苯甲酸作显色剂导数光度法同时测定钴和镍  

Simultaneous Determination of Microamounts of Nickel and Cobalt in Nickel Mineral by First-derivative Spectrophotometry

作　　者：胡琴[1] 解成喜[1] 杨淑贞 

机构地区：[1]新疆大学分析测试中心,乌鲁木齐830046

出　　处：《分析化学》1992年第12期1439-1441,共3页Chinese Journal of Analytical Chemistry

摘　　要：本文研究了用2-(4,5-二甲基-2-噻唑偶氮)-5-二甲氨基苯甲酸(简称DMTAMB)作显色剂,在乙醇介质中,利用一阶导数消除钴(Ⅲ)和镍(Ⅱ)彼此间的干扰,对镍矿石中微量钴和镍进行同时测定,结果满意。A simple and convenient method for the simultaneous determination of Ni and Co in nickel mineral by first-derivative spectrophotometry with reagent 2-(4,5-dimethyl-2-thiazolylazo)-5-dimethylaminobenzoic acid has been reported. The interference between Ni and Co has been overcome.The method can be applied to the determination of microamounts of Ni and Co in nickel mineral with satisfactory results.

关 键 词：导数 分光光度法 钴 镍 DMTAMB 

分 类 号：O614.81[理学—无机化学]