【摘要】 本文介绍了一种新的测定痕量Au(Ⅲ)的方法。在浓度分别为0.1M的乙二胺和乙腈混合溶液中,在玻碳电极上用电化学聚合的方法制备了乙二胺聚合物修饰电极,将该电极用阴汲溶出伏安法测定了痕量Au(Ⅲ),溶出峰高与Au(Ⅲ)浓度在1～50ng/ml范围内呈线性关系,检测限为0.1ng/ml。用该法测定金银首饰品厂电解废水获得了满意的结果。更多还原

【Abstract】 A new method for determining Au(III)is reported. The ethylenediamine polymer modified electrode is prepared electrochemically in 0.1M ethylenediamine and acetonitrile solution. The modified electrode can be applied to determine trace Au(III)by cathodic stripping method. The detection limit is 0.1ng/ml and the peak current is linearly proportional to the concentration of Au(III)over a range of 1-50ng/ml. The sample is detected satisfactorily.更多还原