论文部分内容阅读
目的以溪黄草及其近缘种的微量元素含量为聚类分析的对象,研究了火焰原子发射法和原子吸收光谱法结合聚类分析法对溪黄草及其近缘种进行分类的可行性。方法采用火焰原子发射法和火焰原子吸收法测定溪黄草及其近缘种中K、Na、Ca、Mg、Fe、Mn、Cu等7种微量元素的含量,基于上述的测定结果,对数据进行标准化处理后,采用SPSS主成分分析法和聚类分析法对其进行分类研究。结果表明用该法可实现对溪黄草及其近缘种植物的鉴别,总符合率达87%(14/15)。结论火焰原子发射法和火焰原子吸收光谱法与聚类分析法相结合可为判别溪黄草及其近缘种提供一种新的方法。
OBJECTIVE To study the trace element contents of Xihuangcao and its related species for clustering analysis, it is feasible to classify Xihuangcao and its related species by flame atomic emission spectrometry and atomic absorption spectrometry combined with cluster analysis Sex. Methods The content of trace elements K, Na, Ca, Mg, Fe, Mn, Cu and other seven trace elements in Xihuangcao and its related species were determined by flame atomic emission spectrometry and flame atomic absorption spectrometry. Based on the above results, After standardization, SPSS principal component analysis and cluster analysis were used to classify them. The results showed that the method can achieve the identification of Xihuangcao and its related species with the total coincidence rate of 87% (14/15). Conclusion Flame atomic emission spectrometry and flame atomic absorption spectrometry combined with cluster analysis can provide a new method for judging Xihuangcao and its related species.