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利用Nafion膜与试样中的Cu2＋进行离子交换的性能，研究了Nafion修饰电极富集和阳极溶出伏安法测定废水中铜的方法，结果表明，方法检测限为0．09mg／L，线性测量范围为0．30～4．5mg／L，精密度以相对标准偏差表示在2．1％～11％之间。
The method for the determination of copper in waste water by Nafion modified electrode enrichment and anodic stripping voltammetry was studied by using Nafion membrane and Cu2 + in the sample for ion exchange. The detection limit of the method was 0.09mg / L. The linearity The range is 0.30 ~ 4.5mg / L, the relative standard deviation of precision is between 2.1% ~ 11%.