阳极溶出伏安法在线测定有色金属矿区雨水径流中铅和镉

Online Determination of Lead and Cadmium in Nonferrous Metal Mining Area Rain Runoff by Anodic Stripping Voltammetry

介绍阳极溶出伏安法的基本原理、基本流程,利用汞膜电极对有色金属矿区雨水径流中铅和镉中重金属元素同时进行测定,并将所测得的结果进行传输保存;在选定的最佳实验条件下,测得雨水径流中镉、铅相对标准偏差分别为0.200%和0.287%,回收率均在89.5%到105%之间,取得比较理想的测定结果.

The article introduces the basic principle and process of anodic stripping voltammetry. The mer-cury film electrode is used to detect lead and cadmium in nonferrous metal mining area rain runoff. Then the result is transmitted and preserved. Under the best selected experimental conditions, the relative standard deviation of lead and cadmium is 0. 200% and 0. 287% while the recovery rate is both between 89. 5 %and 105 %. The determination results are satisfactory.