微波消解-火焰原子吸收光谱法测定川牛膝中的6种微量元素  

Determination of Six Trace Elements in Cyathula Officinalis Kuan by Flame Atomic Absorption Spectrometry with Microwave Digestion

作　　者：马金华[1] 

机构地区：[1]西昌学院轻化工程学院

出　　处：《光谱实验室》2011年第3期1400-1403,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：四川省教育厅科研基金项目(08zc015)

摘　　要：建立火焰原子吸收光谱法测定凉山牛膝中Ca、Mg、Fe、Zn、Cu、Mn元素含量的方法。用浓硝酸微波消解样品,采用校准曲线法测定。凉山牛膝中含有Ca 7.67mg/g,Mg 1.07mg/g,Fe 0.243mg/g,Zn 0.0425mg/g,Cu 0.00549mg/g,Mn 0.0826mg/g。RSD为1.8%—4.8%,回收率为96%—107%。方法简单、准确,结果令人满意。The method for the determination of the contents of Ca,Mg,Fe,Zn,Cu and Mn in Cyathula officinalis kuan were established by flame atomic absorption spectrometry with microwave digestion.The samples were diluted by microwave digestion with concentrated HNO3,and the contents were determined by calibration curve method.The content of Ca was 7.67mg/g with Mg of 1.07mg/g,Fe of 0.243 mg/g,Zn of 0.0425mg/g,Cu of 0.00549mg/g,Mn of 0.0826mg/g.RSD for the method was in the range of 1.8%—4.8%,and recoveries were in the range of 96%—107%.The method is accurate and satisfying.

关 键 词：微波消解 火焰原子吸收光谱法 川牛膝 微量元素 

分 类 号：O657.31[理学—分析化学]