胶束介质在速差动力学分析中的应用──钴（Ⅱ）、镍（Ⅱ）的同时测定  

The Application of Micellar Media in Differential Rate Kinetics Analysis──Simultaneous Determination or Cobalt and Nickel

作　　者：刘和春[1] 蔡汝秀[1] 黄厚评[1] 

机构地区：[1]武汉大学化学系

出　　处：《高等学校化学学报》1996年第5期719-721,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：胶束介质在速差动力学分析中的应用──钴（Ⅱ）、镍（Ⅱ）的同时测定刘和春，蔡汝秀，黄厚评（武汉大学化学系，武汉，４３００７２）关键词停流技术；速差动力学分析法；钴（Ⅱ）；镍（Ⅱ）钴与镍的性质极为相似，４－（２－吡啶偶氮）－间苯二酚分别与钴（Ⅱ）、镍（Ⅱ...Micellar Media in differential rate kinetics analysis has been applied to simultaneous determination of cobalt and nickel. This method was based on the formation of ternary complex of them with 4-(2-pyridylazo)resorcinol(PAR)and cetyltrimethylammonium bromide(CTMAB). The rate of the formation of ternary complex of Co(Ⅱ) was very fast, but that of Ni(Ⅱ) was relatively slow. The relative deviation for determinations of two components was within 8%. The logarithmic extrapolation method with microcomputer 386 has been applied to the determination of Co(Ⅱ) and Ni(Ⅱ)in synthetic samples with satisfactory results.

关 键 词：停流技术 速差动力学分析法 钴(Ⅱ) 镍(Ⅱ) 

分 类 号：O614.81[理学—无机化学] O657.3[理学—化学]