阳极溶出伏安法同时测定海水中铜、铅、镉、锌

Determination of Cu,Pb,Cd,Zn in sea water by anodic stripping voltammetry

采用微分脉冲阳极溶出伏安法同时测定了海水中Cu、Pb、Cd、Zn4种痕量元素,在选定最佳实验条件下,通过标准加入法对海水的Cu、Pb、Cd、Zn进行分析,其相对标准偏差分别为5.6%、4.6%、1.80%、1.98%,而回收率分别为98.0%～105.6%、95.3%～106.5%、90.0%～107.4%和90.8%～103.5%,测定结果令人满意。

4 trace elements which were Cu,Pb,Cd,Zn in sea water were determined by anodic stripping voltammetry. The best experimental conditions were selected to analyze Cu,Pb,Cd,Zn in sea water by standard addition method. The relative standard deviations were 5.6%,4.6%,1.80%,and 1.98%. The recovery rate were 98.0%～105.6%,95.3%～106.5%,90.0%～107.4%,and 90.8%～103.5%. The results were satisfied.