美国等五国西洋参人参药材中重金属残留量分析(1)
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[摘要] 目的 建立原子吸收分光光度法测定五国四种人参药材中的铅、镉、砷、汞、铜重金属含量。 方法 采用原子吸收法在324.8 nm波长检测铜含量，在283.3 nm波长检测铅含量，在228.8 nm波长检测镉含量，另外采用原子荧光光谱法测定砷、汞的含量。 结果 24批五国四种人参药材中的重金属残留量西洋参为10.581~12.025 mg/kg；红参(高丽参)为12.719~14.002 mg/kg。 结论 五国四种西洋参人参药材样品中重金属残留量均符合2005年版《中国药典》(一部)及香港特区《中成药注册申请手册》的有关重金属标准规定。
[关键词] 原子吸收分光光度法；原子荧光光度法；西洋参(花旗参)；红参(高丽参)；重金属残留量
[中图分类号] R931.5 [文献标识码] A [文章编号] 1674-4721(2012)02(a)-0055-03
Analysis of heavy metal residues in radix ginseng and radix panacis quinquefolii from USA and other 4 countries
QIU Lianjian ZENG Bin FENG Silin LI Jianming
Department of Pharmacy, Shenzhen Hospital of TCM, Guangzhou University of TCM, Guangdong Province, Shenzhen 518033, China
[Abstract] Objective To adopt the atomic absorption spectrophotometry method to determine the contents of heavy metals including Plumbum (Pb), Cadmium (Cd), Arsenic (As), Mercury (Hg) and Cuprum (Cu) in 4 kinds of Radix Ginseng from 5 countries. Methods The contents of Cu, Pb and Cd were determined by atomic absorption spectrophotometry at detection wavelength of 324.8 nm, 283.3 nm and 228.8 nm respectively. The contents of arsenic and mercury were detected by atomic fluorophotometry. Results The contents of heavy metal residues in 24 batches of 4 kinds of radix ginseng from 5 countries were 10.581 - 12.025 mg/kg in Radix Panacis Quinquefolii and 12.719 - 14.002 mg/kg in Ginseng Radix Rubra (Korean ginseng). Conclusion The contents of heavy metal residues in 4 kinds of Radix Ginseng and Radix Panacis Quinquefolii from 5 countries are in accordance with the content standard in the first part of Chinese Pharmacopoeia (2005 edition) and manual for Chinese Patent Medicine Application and Registration subscribed by the HKSAR.
[Key words] Atomic absorption spectrophotometry; Atomic fluorescence spectrometry; Radix Panacis Quinquefolii (American Ginseng); Ginseng Radix Rubra (Korean ginseng); Heavy metal residues
西洋参、花旗参、高丽参、红参等均为名贵中药材，除中国外，加拿大、美国、南韩、朝鲜等国均有生产。由于东西方文化和中西医学模式差异，中药材中的重金属、农药残留量超标事件已成为中药出口走向世界的“贸易壁垒”[1]。制定中药材重金属限量标准已成为紧迫工作[2]，我国对中药材现行的重金属限量规定是否可行 ......
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