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.
出处
《吉林大学自然科学学报》
CAS
CSCD
1992年第4期80-84,共5页
Acta Scientiarum Naturalium Universitatis Jilinensis
关键词
铅
伏安法
痕量分析
lead
adsorptive catalytic voltammetry
trace analysis
