1.5次微分阴极溶出伏安法测定水样中痕量硒(Ⅳ)

1.5-Differential cathodic stripping voltammetric determination of trace selenium in water

采用玻碳汞膜电极为极化电极 ,研究了痕量硒 (IV)在 0 .10mol/LHClO4与 0 .10mol/LKCl支持电解质中的 1.5次微分阴极溶出行为。线性范围 0 .2 0～ 1.0 0 μg/L ,相关系数 0 .9997。

A new polarographic method for determination of trace selenium was established.1 .5-differential CSV determination of selenium was established by using glassy-carbon-Ag/AgCl platinum three electrode potentiostat.The method i s suitable for determination of 0.2～1.00 mg·mL -1 .The result of the anal ysis is satisfactory.