阳极溶出伏安法测定天然水、食品中的痕量铅

Determination of Trace Lead in Natural Water and Canned Foods by Stripping Voltammetry

在氯化吡啶溶液中以汞膜电极为工作电极,大量锡存在下阳极溶出伏安法测定铅,并对富集和溶出的实验条件,方法的精密度,回收率和共有元素的干扰进行了探讨。

A method to determine trace lead by anodic stripping voltammetry was described.The determination took place in the solution of pyridine hydrochloride,mercury-film electrode was used as work electrode.The present of a great deal of tin would not affect the determination. Precision, recovery, influence of coexistent elements and optimum conditions of experiment were discussed.