广西何首乌中微量元素的原子吸收光谱分析

ATOMIC ABSORPTION SPECTRUM ANALYSIS OF TRACE ELEMENTS IN ROOT OF POLYGONUM MULTIFLORUM OF GUANGXI

用原子吸收光谱法测定了广西何首乌中４种微量元素，考查了方法的精密度和准确度，变异系数为３．１％～４．３％，回收率为９４．５％～１０５．１％。

Determination of 4 kinds of trace elements in root of Polygonum multiflorum of Guangxi by atomic absorption spectrum method. checking up the accuracy and the precision of the method. The coefficient of variation is 3. 1%～4.3%, the recovery is 94.5%￣105. 1%.