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目的:采用原子吸收光谱法测定中药排草中的微量元素含量。方法:用硝酸和高氯酸(4+1)对样品进行消解,火焰原子吸收光谱法测定排草果中Fe,Mn,Zn,Cu微量元素的含量。结果:排草中Fe,Mn,Zn,Cu的含量分别为156.70、340.90、43.15、23.72μg/g。方法回收率在90.56%～103.8%之间,准确可靠,为排草的进一步开发提供参考。
Objective: To determine the content of trace elements in Chinese herb medicine by atomic absorption spectrometry. Methods: The samples were digested with nitric acid and perchloric acid (4 + 1), and the contents of trace elements Fe, Mn, Zn, Cu in Paeonia suffruticosa were determined by flame atomic absorption spectrometry. Results: The content of Fe, Mn, Zn and Cu in row weeds were 156.70, 340.90, 43.15 and 23.72μg / g, respectively. The recoveries of the method ranged from 90.56% to 103.8%, which were accurate and reliable, providing reference for the further development of rowing.