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火焰原子吸收光谱法测定山药中多种微量元素
引用本文:张薇,张卓勇,施燕支,范国强.火焰原子吸收光谱法测定山药中多种微量元素[J].光谱学与光谱分析,2006,26(5):963-965.
作者姓名:张薇  张卓勇  施燕支  范国强
作者单位:1. 首都师范大学化学系,北京市资源环境与GIS重点实验室,北京,100037
2. 北京同仁堂股份有限公司科学研究所,北京,100011
基金项目:北京市教委科技发展计划项目 , 北京市科技新星计划项目
摘    要:利用火焰原子吸收光谱法测定了山药中钾、钙、钠、镁、铜、锌、铁、锰、锶和镍的含量.其中前八种元素的RSD分别为0.43%,1.10%,4.41%,0.68%,1.44%,1.88%,1.29%和0.03%.回收率为90.0%~111.0%,该方法灵敏度高,结果准确,可用于山药等中草药中多种微量元素的同时测定.用该法对不同地区的中草药进行微量元素分析测定.文章还对不同产地中草药微量元素含量的变化及其分布的规律性进行了讨论,可以为探讨微量元素与中草药的质量关系提供一定的理论依据.

关 键 词:火焰原子吸收光谱法  中草药  山药  微量元素
文章编号:1000-0593(2006)05-0963-03
收稿时间:2004-12-16
修稿时间:2005-06-02

Determination of Nine Trace Elements in Dioscorea Opposita Thumb by Flame Atomic Absorption Spectrophotometry
ZHANG Wei,ZHANG Zhuo-yong,SHI Yan-zhi,FAN Guo-qiang.Determination of Nine Trace Elements in Dioscorea Opposita Thumb by Flame Atomic Absorption Spectrophotometry[J].Spectroscopy and Spectral Analysis,2006,26(5):963-965.
Authors:ZHANG Wei  ZHANG Zhuo-yong  SHI Yan-zhi  FAN Guo-qiang
Institution:1. Department of Chemistry, Resources Environment and GIS Key Lab of Beijing, Capital Normal University, Beijing 100037, China;2. Research Institute, Tongrentang Group Co. Ltd. , Beijing 100011, China
Abstract:The contents of the potassium, calcium, sodium, magnesium, copper, zinc, iron, manganese, strontium and nickel in Dioscorea opposita thumb were determined. The relative standard deviation(RSD) of the first eight contents is 0.43%, 1.10%, 4.41%, 0.68%, 1.44%, 1.88%, 1.29% and 0.03% respectively, and the percentage recovery is 90.0%-111.0%. The method is convenient and accurate. It can be used to determine the trace elements simultaneousy in Dioscorea opposita thumb.
Keywords:Flame atomic absorption spectrophotometry  Chinese herbal medicine  Dioscorea opposita thumb  Trace element
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