吸附催化伏安法测定痕量铅  

Determination of Trace Lead by Adsorptive Catalytic Voltammetry

作　　者：孙长清[1] 崔英[1] 崔素君[1] 高茜[1] 许宏鼎[1] 郭黎平[2] 

机构地区：[1]吉林大学化学系 [2]东北师范大学化学系

出　　处：《吉林大学自然科学学报》1992年第4期80-84,共5页Acta Scientiarum Naturalium Universitatis Jilinensis

摘　　要：本文提出了利用吸附催化伏安法测定痕量铅的方法。当富集时间为120s时,铅的最低检测浓度为1×10^(10)mol/L. 同时对吸附催化过程进行讨论。A new method for the determination of trace lead by adsorptive catalytic voltammetry has been established. In a supporting electrolyte containing 1.2×10^(-2)mol/L HCI, 6×10^(-2) mol/L KI, 6×10^(-3) mol/L V( Ⅳ), a sensitive adsorptive catalytic peak of PbI_4~2 complex was obtained by DPS. When the accumulative time is 120 s, the limit of determination for lead is 1×10^(10) mol/L. The method was successfully applied to the determination of lead in synthetic water samples.

关 键 词：铅 伏安法 痕量分析 

分 类 号：O614.433[理学—无机化学]