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目的:建立同时检测清热解毒类中草药样品中Cu、Fe、Zn、Mn、Na、K、Ca、Mg、Cr、Ni、Pb、Se、As、Cd等14种元素的含量的分析方法。方法:用微波消解法对清热解毒类中草药样品进行消化,以电感耦合等离子体发射光谱仪(ICP-AES)检测样品中14种元素的含量,并优化微波处理条件。结果:清热解毒类中草药中含有丰富的对人体有益的常微量元素。结论:采用微波消解技术和ICP-AES相结合检测常微量元素具有省时、省力、环境污染小,测定结果快速、准确等优点。
OBJECTIVE: To establish a method for the simultaneous determination of Cu, Fe, Zn, Mn, Na, K, Ca, Mg, Cr, Ni, Pb, Se, As and Cd in Chinese herbal samples of detoxification. Methods: Digestion of detoxification herbal samples was performed by microwave digestion. The contents of 14 elements in the samples were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES), and the microwave treatment conditions were optimized. Results: Qingrejiedu herbs are rich in trace elements beneficial to human health. Conclusion: The combination of microwave digestion and ICP-AES for the determination of trace elements has the advantages of saving time, labor, environmental pollution, rapid and accurate determination results.