锰的准液膜富集及原子吸收法测定

Quasi Liquid Membrane Enrichment of Manganous ion in Environmental Sample and its Determination by Atomic Absorption Spectrometry

本文利用准液膜法与火焰原子吸收法相结合测定锰，方法的精密度为１．９％，回收率为９８．９％，可富集测定ｎｇ／ｇ级的锰。本方法已用于人发，湖水和茶中锰的分析。

The method of determinat ion of trace manganous ion by using quasi liquid membrane and atomic absorption spectro photometry is described.The precision(RSD) and recovery are 1.9% and 98.9% respectively.Mn 2+ at ng/g level can be enriched.