水中痕量 Pb,Cu 的液膜富集与火焰原子吸收测定

Liguid Membrane Enrichment and Determination of Trace Pb,Cu

研究了兰113A-P_(507)-环己烷-H_2SO_4液膜体系对 Pb,Cu 的富集方法,确定了富集的最佳条件.结合火焰原子吸收法,测定了饮用水和汽水中 PPb 级的 Pb,Cu 的含量.

The enrichment of trace Pb,Cu with a La-113A-P_(507)-cyclohexane-H_2SO_4 liguid membrane system was studied and the optimum condition was obtained.By using enrich- ment and flame atomic absorption spectrophotometry ,the trace Pb,Cu,which concentra- tion in soda water and drinkable water is in range to ppb,were determined satistactorily.