鹊肾树叶无机元素含量的测定

Determination of the Contents of Inorganic Elements in Streblus Lour. Leaves

采用火焰原子吸收光谱法(FAAS)测定了鹊肾树叶中的K、Ca、Na、Mg、Fe、Mn、Sr、Zn、Cu、Pb、Cd等11种无机元素的含量,该方法简单、快速、准确,加标回收率为95.35%—104.70%,相对标准偏差(n=6)小于5%。研究结果表明,鹊肾树叶中富含多种人体所必需的无机元素。

The contents of inorganic elements such as K,Ca,Na,Mg,Fe,Mn,Sr,Zn,Cu,Pb and Cd in Streblus Lour.leaves were determined by flame atomic absorption spectroscopy（FAAS）.The recoveries obtained by the standard addition method ranged between 95.35% and 104.70%,and the relative standard deviation was less than 5%.The experiment results proved that Streblus Lour.leaves were rich in inorganic elements.This method is fast,simple and convenient.