不同产地吉祥草中重金属的含量测定  

Determination of Five Elements in Reineckea Carnea(Andr.) Kunth from Different Areas

作　　者：龚小见[1] 周婵媛[1] 陈华国[1,2] 周欣[1,2] 张松[1,2] 梁小洁[2] 

机构地区：[1]贵州师范大学天然药物质量控制研究中心,贵阳市宝山北路116号550001 [2]贵州师范大学贵州省山地环境信息系统与生态环境保护重点实验室,贵阳市550001

出　　处：《光谱实验室》2011年第2期670-673,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：贵州省中药现代化科技产业研究开发专项项目[黔科合中药专字[2006]5007号];贵州省中药材现代产业技术体系建设专项经费资助项目[黔农技(2009)236号]

摘　　要：测定吉祥草中重金属及有害元素含量,比较不同产地吉祥草中的Cu、Pb、As、Cd、Hg 5种元素的含量。采用原子吸收光谱法测定铅、铜、砷含量,用原子荧光光谱法测定汞、镉含量。吉祥草药材中汞、镉、砷含量均低于国家限量标准,个别地区吉祥草药材中铜、铅含量高于国家限量标准。本文为科学地制定吉祥草药材中重金属限量标准,提高吉祥草药材的质量,保证临床安全用药提供科学依据。The contents of heavy metals and harmful elements were determined and the contents of five elements,such as Cu,Pb,As,Cd and Hg,in Reineckea carnea（andr.） kunth from different areas were compared.Three elements of the digested samples were determined by atomic absorption spectroscopy simulatneously,and the contents were calculated by calibration curves.The contents of Cd,Hg were determined by atomic fluorescence spectroscopy.The contents of As,Cd,Hg are lower than the national limit standard,but the contents of Cu,Pb in some areas are higher than the national limit standard.This experiment provides the scientific basis for formulating the element limit standard,improving the quality of Reineckea carnea（Andr.） Kunth and ensuring the clinical safety.

关 键 词：吉祥草 重金属 原子吸收光谱法 

分 类 号：O657.31[理学—分析化学]