用火焰原子吸收光谱法测定了党参中K、Cu、Zn、Fe、Mg的含量,该方法的加标回收率在99.7%—104.4%之间,样品测量次数n=5,相对标准偏差(RSD)小于1.0%,说明该法具有良好的准确度和精密度。在此基础上对微量元素在党参不同部位含量的相关性进行了分析。 The contents of K, Cu, Zn, Fe and Mg in Codonopsis pilosula were determined by flame atomic absorption spectrometry. The recoveries were in the range of 99.7% -104.4%. The number of samples was n = 5 and the relative standard deviation ) Is less than 1.0%, indicating that the method has good accuracy and precision. On this basis, the correlation between the content of trace elements in different parts of Codonopsis was analyzed.