摘要
在ｐＨ１．８的Ｈ＿２ＳＯ＿４－ＮａＡｃ缓冲溶液中，用单扫示波极谱法，Ｓｂ（Ⅲ）或者Ｓｎ（Ⅳ）－７－碘－８－羟基喹啉－５－磺酸－Ｓｅ（Ⅳ）体系可产生灵敏的络合吸附催化波。锑、锡浓度分别在０．４～２００μｇ／Ｌ和０．８～１８０μｇ／Ｌ范围内与峰高呈线性关系，检测限分别为０．２μｇ／Ｌ和０．４μｇ／Ｌ，并用于工业废水、地下水和天然水中痕量锑和锡的测定。同时对电活性络合物的组成、极谱波的性质和电极过程机理也作了讨论和研究。
In the buffer solution of H_2SO_4-NaAc atpH1.80, two sensitive adsorptive complexcatalvtic waves of antimony (Ⅲ)-ferron andtin-ferron with micro amount of selenium (Ⅳ)can be obtained by single sweep polarography.The peak current is linearly related to the con-centrations of antimony and tin in the rangefrom 0.4～200μg/L Sb and0.8～180μg/LSn. The detection limits are0.2μg/L and 0.4μg/L for antimony and tin respectively. Theproposed method has been applied to the con-tinuous determination of trace antimony andtin in industrial waste water, ground waterand natural water. The mechanism of the elec-trode reaction has been studied.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第3期58-61,共4页
Chinese Journal of Analysis Laboratory
关键词
羟基喹啉
磺酸
锑
锡
硒
极谱法
水
Ferron, adsorptive, complexcatalytic wave, antimony, Tin, selemium.
