样品经硝酸分解 ,用高氯酸冒烟氧化分离锰后 ,铅在盐酸底液中 ,在峰电 -0 6V处产生一良好的还原波 ,能直接测定电解金属锰中微量铅 ,且方法简便、快速、准确 ,回收率在 98 4 0 %～1 0 0 60 % ,相对标准偏差 3 3 1 %～ 4 1 0 % ,能应用于工业控制分析。 After the sample is decomposed by nitric acid and manganese is oxidized and percolated with perchloric acid, lead can produce a good reduction wave at -06V at the bottom of hydrochloric acid solution, which can directly measure trace lead in electrolytic manganese metal, and the method is simple The method can be applied to industrial control analysis quickly and accurately with a recovery of 98 4 0% -1 0 0 60% and a relative standard deviation of 3 3 1% -4 10%.