连续氢化物发生端视ICP-AES法直接测定纯净水中痕量铅

Direction Determination of Trace Lead in Purified Water by Using Axially Viewed ICP-AES with Continuous Hydride Generation

本文报道用自制氢化物发生装置 ,建立了硼氢化钠 -铁氰化钾 -盐酸体系端视ICP -AES法直接测定纯净水中痕量铅的方法。该方法简便快速 ,不需任何浓缩富集 ,分析成本低。方法检出限为 0 .0 0 3mg/L ,样品的加标回收率为95 .0～ 97.5 % 。

A method was used to divectly determine the trace lead in purified water by using axially viewed ICP-AES with a simple hydride generation device. A hydride generation system of NaBH 4-K 3Fe(CN) 6-HCl is applied. The present method is very fast and simple to manipulation without preconcentration. with, low cost. The detection limitation is 0.003mg/l. The recoveries of practical sample are 95.0～97.5%.