Determination of 5 Heavy Metals in Chinese Traditional Medicines and Extraction Liquid Containing Mineral Materials
BAI Guo-yin1, WEI Chao2, OUYANG Li1, XIE Qing1, LIU Ya-qiong1, WANG Jun2, WANG Jing-yu1, 3*
1. School of Public Health, Peking University, Beijing 100191, China 2. National Institute of Metrology, Beijing 100013, China 3. Center of Medical & Health Analysis, Peking University, Beijing 100191, China
Abstract：Chinese traditional medicine (CTM) containing realgar may contain high levels of toxic metals, such as arsenic, etc. The monitoring of trace elements, especially the harmful elements, is closely related to the quality control of the CTM. Three kinds of CTM containing realgar were digested by microwave method and electric heating plate method, and As, Hg, Cu, Cd and Pb were determined using ICP-MS and ICP-AES. In addition, this research determined the content of soluble heavy metals in the human gastrointestinal solution. The results showed that three kinds of CTM contained As of 24 350～68 627 mg·kg-1;Hg of 0.26～122 313.6 mg·kg-1;Cu of 2.04～6.95 mg·kg-1;Cd of 0.02～1.46 mg·kg-1;Pb of 0.42～40.60 mg·kg-1. In comparison, the contents of soluble heavy metals in the human gastrointestinal solution are: As of 81～618 mg·L-1;Hg of 0.34～216 mg·L-1;Cu of 1.08～215 mg·L-1, and Pb, Cd were not detected.
Key words：Chinese traditional medicine;Heavy metals;ICP-MS;ICP-AES
白国银1，韦 超2，欧阳荔1，解 清1，刘雅琼1，王 军2，王京宇1，3* . 含矿物中成药及其胃肠消化液中五种重金属元素的测定研究 [J]. 光谱学与光谱分析, 2011, 31(01): 256-259.
BAI Guo-yin1, WEI Chao2, OUYANG Li1, XIE Qing1, LIU Ya-qiong1, WANG Jun2, WANG Jing-yu1, 3* . Determination of 5 Heavy Metals in Chinese Traditional Medicines and Extraction Liquid Containing Mineral Materials . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(01): 256-259.
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