论文部分内容阅读
采用自制流通池将介质交换技术和高灵敏度的差示脉冲阳极溶出伏安法相结合,在流动的含有样品的盐酸溶液中富集,而在静止的不含样品的乙二胺—氢氧化钠溶液中阳极溶出,得到了分辨率和灵敏度较高的溶出峰。从根本上解决了铅和铊阳极溶出峰相重叠的问题,从而实现了酸性溶液中铅和铊的同时测定。
A home-made flow cell was used to combine the medium exchange technique with high-sensitivity differential pulse anodic stripping voltammetry, enrichment in a flowing sample-containing hydrochloric acid solution, and a static sample-free ethylenediamine-sodium hydroxide solution In the anodic dissolution, obtained a higher resolution and sensitivity of the dissolution peak. The fundamental solution to the lead and thallium anode dissolution peak overlap problem, so as to achieve the acid solution of lead and thallium simultaneous determination.