催化动力学光度法同时测定铜和银

Simultaneous Determination of Copper and Silver by Catalytic Kinetic Spectrophotometry

基于Cu（Ⅱ）、Ag（Ⅰ）在硼酸-氢氧化钠缓冲介质中，能同时催化过硫酸铵氧化邻甲氧基酸的显色反应，实现了Cu（Ⅱ）、Ag（Ⅰ）的催化动力学分析法同时测定，研究了最佳反应条件。用于合成样品测定时比较了多元线性回归（MLR）、卡尔曼滤波（KF）和人工神经网络（ANN）用于数据处理的优劣，发现以ANN法的结果最好。此法用子铅锌矿废渣中铜、银的同时测定，结果满意。

The simultaneous determination of copper and silver by catalytic kinetic spectrophotometric method was realized based on the catalysis of Cu(Ⅱ) and Ag(Ⅰ) to the reaction of o-methoxyphenolammonium persulfate in boric acid and sodium hydroxide buffer medium. The optimum condition of reaction was studied. The calculaion results of using multivariate linear regression. Kalman filter andartificial neural network were compared, it indicated that the result of artificial neural network was the best for the determination in synthetic samples. This method has been used to determine copper(Ⅱ) and silver(Ⅰ) in offscum of plumbum-zinc mine with saisfactory results.