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目的:测定桑白皮中Zn、Fe、Cu、Mn 4种微量元素的含量。方法:硝酸和高氯酸(4+1)分解样品,火焰原子吸收光谱法(FAAS)测定。结果:RSD均小于2.95%,回收率在103.2%~106.0%之间,结果令人满意。结论:可为进一步探讨桑白皮中上述微量元素与其药效的关系提供一定参考。
Objective: To determine the contents of four trace elements (Zn, Fe, Cu, Mn) in Morus alba. Methods: Decomposed samples of nitric acid and perchloric acid (4 + 1) were determined by flame atomic absorption spectrometry (FAAS). Results: The RSDs were all less than 2.95% and the recoveries were between 103.2% and 106.0%. The results were satisfactory. Conclusion: This study may provide some references for further discussing the relationship between the above trace elements in mulberry white skin and its efficacy.