流通池介质交换差示脉冲阳极溶出伏安法用于多元素重叠峰的分离及其同时测定

Separation of Overlapping Peaks and Simultaneous Determination for Multielement by Differential Pulse Anodic Stripping Voltammetry With Medium Exchange in a Flow-Through Cell

本文用流通池介质交换差示脉冲阳极溶出伏安法在盐酸介质中富集,而以碳酸钠-碳酸氢钠缓冲溶液为溶出介质,有效地分离了酸性介质中Cu(Ⅱ)、Sb(Ⅲ)、Pb(Ⅱ)、Tl(Ⅰ)、Cd(Ⅱ)、In(Ⅲ)的重叠溶出峰,实现了多离子的同时测定。

Using a home-made flow-through cell,the separation of overlapping peaks for copper(Ⅱ) ,antimo-ny(Ⅲ),lead(Ⅱ ), thallium(Ⅰ), cadmium(Ⅱ), indium(Ⅲ)in acidic media by means of medium exchange is investigated and simultaneous determination of multielement is realized.