原子荧光法测定桑蝉止咳方中甘草砷汞的含量  

To Determine the Contents of Two Heavy Metals As and Hg in Radix Glycyrrhiza of Sang Chan Zhi Ke Fang

作　　者：蒲星宇 徐静逍[2] 毕云[3] 熊丽娟[2] 魏丹霞[4] 

机构地区：[1]云南省药物研究所,云南昆明650111 [2]云南中医学院,云南昆明650500 [3]昆明医科大学,云南昆明650500 [4]昆明市中医医院,云南昆明650011

出　　处：《云南中医学院学报》2012年第5期8-10,共3页Journal of Yunnan University of Traditional Chinese Medicine

基　　金：云南省重点产业创新工程(中药现代化科技产业云南基地建设)项目(NO:2008IF01)

摘　　要：目的:通过原子荧光光谱法测定桑蝉止咳方中甘草中砷和汞的含量。方法:采用微波消解样品,通过原子荧光光谱法测定。结果:桑蝉止咳方中甘草砷含量为0.3857mg/kg;汞含量为5.8274μg/kg。符合中国药典2010版一部甘草项下的规定。对于所测元素标准曲线相关系数r>0.9997,加标回收率为99.5%～102.8%,RSD≤2.2%.结论:使用原子荧光光谱法进行重金属的测量成本低廉,快速简便,方法准确且灵敏度较高。Objective： To establish the method for determination of two kinds of heavy metals （ As, Hg） in Glycyrrhiza of Sang Chart Zhi Ke Fang by atomic fluorescence spectrometry （AFS）. Methods： Microwave digestion and determination by AFS. Results： The content of As is 0. 3857mg/Kg; The content of Hg is 5. 8274 μg/Kg. Accord with the chinese pharmacopoeia under the provisions of Glycyrrhiza. The correlative coeffi- cient of the calibration curves was over 0. 9997, the recovery was 99.5% - 102. 8%, RSD≤〈2.2%. Conclusion： The method is quick , convenient , acquired accurate and highly sensitive.

关 键 词：桑蝉止咳方 重金属 原子荧光 微波消解 

分 类 号：R284.1[医药卫生—中药学]