采用微波消解法处理样品, 以电感耦合等离子体发射光谱法(ICP-AES)测定并分析九种补血类中药中Zn, Mn, Na, K, Ca, Mg, Ni, Pb, Se, Fe, Cu, Al, B, Ti, Sn, Hg和Li元素的含量。 结果显示, 九种补血类中药富含有益于人体健康的主要及微量元素, 其中众所周知补血类元素Fe, Se, Ni, Mn, Zn含量较高。 九种补血中药按各大元素分类(大量元素, 必需元素, 非必需元素, 有害元素)分布于柱形直方图。 应用主成分分析和聚类分析于数据矩阵去评价元素分析结果。 聚类分析的结果显示九种补血类中药中十七种元素的含量所形成的树状系统图主要分为三个集群。 通过优化微波消解条件, 各元素的回收率均在97.89%～103.25%之间, 相对标准偏差均小于3.0%。 ICP-AES结合微波消解法可以精确和准确地测定九种补血类中药中的元素。

An analytical method has been developed for the determination of traces of Zn, Mn, Na, K, Ca, Mg, Ni, Pb, Se, Fe, Cu, Al, B, Ti, Sn, Hg, and Li in nine herbal drugs for nourishing blood by ICP-AES. The data showed that nine herbal drugs for nourishing blood were abundant in the contents of major and trace elements which are healthy for human body, including the trace elements with higher contents, such as Fe, Se, Ni, Mn, and Zn, which are well known for nourishing blood. Elements (macro-elements, essential elements, non-essential elements, and toxic elements) classified in nine herbal drugs for nourishing blood were illustrated in cylindrical histograms. Principal component analysis and hierarchical cluster analysis were applied to the data matrix to evaluate analytical results. The results of hierarchical cluster analysis showed that dendrogram obtained by Ward’s method of hierarchical cluster analysis for seventeen variables and nine samples mainly displayed three clusters. After optimizing the microwave digestion technology, the recoveries of seventeen elements were in the ranges from 97.89% to 103.25% and the RSDs were all lower than 3.0%. ICP-AES combined with microwave digestion is accurate and precise in determining major and trace elements in nine herbal drugs for nourishing blood.