铋(Ⅲ)-间硝基偶氮氯膦-溴化十六烷基吡啶-Triton X-100-乙醇显色体系的研究及其应用  

Studies on the Chromogenic Reaction of the System Bismuth ( Ⅲ )- Chlorophosphonazo-mN-CPB-Triton X-100-Ethanol and Its Application

作　　者：顾丽忠 吴德怀[1] 沙宁红 周执明[1] 

机构地区：[1]浙江工学院化工系,杭州310014

出　　处：《冶金分析》1992年第4期4-7,共4页Metallurgical Analysis

摘　　要：本文研究了铋(Ⅲ)—间硝基偶氮氯膦—溴化十六烷基吡啶—Triton X-100—乙醇显色体系的光度特性,并确定了该体系中以铋配合物进行测定的最佳条件。该体系与相应的二元体系相比,灵敏度、稳定性和选择性均有显著提高,据此提出了测定铋的新方法。用于铅基合成试样中铋的测定,结果满意。The photometric character of the system of bismuth (III)-chlorophosphonazo-mN-CPB-Triton X-100-ethanol has been studied.The optimua conditions have been investigated for determination of bismuth. The system is of higher sensitivity,stability and selectivity than binary system without CPB-Triton X-100-ethanol.The new method for determining bismuth is proposed and has been applied to the determination of bismuth in lead base synthetic sample with satisfactory results.

关 键 词：铋 TRITONX-100 光度法 CPAmN CPB 

分 类 号：O614.532[理学—无机化学]