应用化学2012，Vol.29Issue(2)：233-237,5.DOI:10.3724/SP.J.1095.2012.00093
硫代乙酰胺共振光散射法检测环境水样中痕量汞
Determination of Trace Mercury with Thioacetamide in Environmental Water Samples by Resonance Light Scatting
摘要
Abstract
In pH = 3. 29 acidic medium, the interaction of Hg ( II ) with thioacetamide ( TAA ) occurs and results in greatly enhanced resonance light scattering( RLS) signals characterized by a peak at 379. 0 nm. The results show that the enhanced RLS signals intensity ( △ IRLS) at 379. 0 nm is proportional to the concentration of TAA. A RLS method for the determination of trace mercury ions is then established accordingly. The linear range is 0. 2 ~ 10. 0 μmol/L. The limit of detection is 0. 02 μmol/L for Hg( Ⅱ ). Effects of the acidity, ionic strength, temperature and coexisting substances interference are also investigated. The method has been applied successfully to the determination of Hg2+ in environmental samples.关键词
共振光散射/Hg(Ⅱ)/硫代乙酰胺Key words
resonance light scattering/mercury/thioacetamide分类
化学化工引用本文复制引用
王莹莹,李华春,谭克俊..硫代乙酰胺共振光散射法检测环境水样中痕量汞[J].应用化学,2012,29(2):233-237,5.基金项目
国家自然科学基金(20877063)、重庆市科学技术委员会基金(CSTC,2007 BB7360)资助项目 （20877063）
