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目的:测定山慈姑中Cu、Zn、Fe、Li、Mn、Cd 6种微量元素的含量。方法:采用火焰原子吸收法对山慈姑中Cu、Zn、Fe、Li、Mn、Cd 6种微量元素含量进行测定分析。结果:山慈姑中Cu、Zn、Fe、Li、Mn、Cd含量分别为4.1,20.1,484,5.1,19.5,0.03μg/g(剑河);4.8,19.7,300,5.7,20.8,0.02μg/g(施秉)。方法回收率在92.3%~104.9%之间,相对标准偏差在3%以下。结论:利用火焰原子吸收法测定微量元素方法简单,可靠,为山慈姑药材的质量评价提供了一定的参考。
Objective: To determine the contents of six trace elements Cu, Zn, Fe, Li, Mn and Cd in Caragana. Methods: The content of trace elements Cu, Zn, Fe, Li, Mn and Cd in Caragana microphylla was determined by flame atomic absorption spectrometry. Results: The contents of Cu, Zn, Fe, Li, Mn and Cd in Shanjiao were 4.1, 4.1, 484, 5.1, 19.5 and 0.03μg / g / g (Shi Bing). The recoveries of the method ranged from 92.3% to 104.9% with relative standard deviations below 3%. Conclusion: The method of determination of trace elements by flame atomic absorption spectrometry is simple and reliable, which provides a reference for the quality evaluation of Medicinal herbs of Rhizoma.