Determination of Trace Metal Elements in Zanthoxylum Nitidum by ICP-AES
QIN Jiao-lan, CHEN Zhen-feng, LIU Yan-cheng, LIANG Hong
Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education), School of Chemistry & Chemical Engineering of Guangxi Normal University, Guilin 541004, China
Abstract：The contents of twenty microelements were determined in the root, stem and leaf of traditional Chinese herbs, Zanthoxylum nitidum by ICP-AES (inductively coupled plasma-atomic emission spectrometry) analytical technology. For such method, their recovery ratio obtained by standard addition method ranged between 89% and 107.5%, and most of RSDs were lower than 4%, with good correction and precision. The analytical results show that there exist different contents from the different parts of the plant. There are most rich elements such as Mg, Na, K, and Ca in its three parts, while Mn, Zn, Fe, Cu, Co, Sr and some toxic elements Cd, Cr, Pb and Bi were also detected; four elements, Se, V, Mo and Hg, were not detected in all parts. There exist many kinds of metal elements benefiting human being health, which may provide useful information for the usage of the herbs and for the study of the relationship between the elements in Chinese traditional medicine and its bioactivities.
Key words：ICP-AES;Zanthoxylum nitidum; Trace metal elements;Traditional Chinese medicine
覃姣兰，陈振锋，刘延成，梁 宏. ICP-AES法测定中草药毛两面针中微量金属元素的含量[J]. 光谱学与光谱分析, 2009, 29(10): 2851-2854.
QIN Jiao-lan, CHEN Zhen-feng, LIU Yan-cheng, LIANG Hong. Determination of Trace Metal Elements in Zanthoxylum Nitidum by ICP-AES. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(10): 2851-2854.
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