火焰原子吸收光谱法测定茶叶中的钾、钠、铷

Determination of K,Na and Rb in Tea by Flame Atomic Absorption Spectrophotometry

本文报道了空气－乙炔火焰原子吸收光谱法测定茶叶中钾、钠、铷的含量。茶叶采用硝酸消解，方法简单、快速。回收率为９９．９％－１０５．２％，相对标准偏差为２．７８％－８．９６％。

The paper reports the contents of K,Na,Rb in tea determined by air C 2H 2 flame atomic absorption spectrophotometry. The tea was digested by nitric acid. The method is simple, fast. The rate of recovery is 99.9%-105.2%.The relative standard deviation is 2.78%-8.96%.