锌与喹啉、铬天青B、溴化十六烷基三甲基铵多元显色反应

Zinc and Quinoline, Chromium Blue Sky B, Bromination Hexadecyl Trimethyl Ammonium Multi-Dimensional Color Reaction

Zn(Ⅱ)-喹啉-CAB-CTMAB四元络合物体系的显色反应及络合物的组成。在pH=8.3～9.2之间该络合物的摩尔吸光系数ε596=1.13×10-5,灵敏度高,干扰离子少,除Fe3+、Al3+、TiO2、Cu2+有较严重干扰外,其它常见离子不发生干扰。具有较好的选择性,络合物颜色可稳定24 h以上。应用于矿石中微量锌的测定,结果满意。

Zn（Ⅱ）-quinoline-CAB-CTMAB quaternary complex compound system color reaction and complex compound composition, when pH was 8.3-9.2, this complex compound mole of extinction coefficient ε596= 1.13× 10^-5, the sensitivity was high, the disturbance ion were few, except Fe^3＋, Al^3＋, TiO2, Cu^2＋ had outside the serious disturbance, other common ions did not have the disturbance. Had the good selectivity, the complex compound color could stabilize above for 24 hours. Applied in the ore of the micro zinc determination, the result was satisfied.