安徽农业科学2011，Vol.39Issue(24)：14618-14619,2.
微波消解-石墨炉原子吸收光谱法测定川牛膝中铅和镉
Determination of Pb and Cd in Cyathula officinalis Kuan Based on Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry
摘要
Abstract
[Objective ] The aim was to determine the content of Pb and Cd in Cyathula officinalis Kuan by using microwave digestion -graphite furnace atomic absorption spectrometry. [ Methods ] The samples were diluted with concentrated nitric acid (HNO3) microwave digestion; 10 μl 2 g/L Mg (NO3)2 ,2 g/L NH4 H2 PO4 and 10 μl 2 g/L NH4H2PO4 were used as matrix modifier; finally calibration curve method was applied upon the result. [Results] Based on the determination, rhicrowave digestion-graphite furnace atomic absorption spectrometry was used to determine the content of Pb and Cd in Cyathula officinalis Ruan,the results indicated that RSD were among 4.5% -5.2% ,recovery rate were in the range of 96% - 107%. The content of Pb and Cd in Cyathula officinalis Kuan were 5.24 and 1.29 μg/g,respectively. [Conclusion] To determine the content of Pb and Cd in Cyalhula officinalis Kuan by using microwave digestion-graphite furnace atomic absorption spectrometry was accurate and satisfying.关键词
微波消解/原子吸收光谱法/川牛膝/铅:镉Key words
Microwave digestion/Graphite furnace atomic absorption spectrometry/Cyathula officinalis Kuan/Pb/ Cd分类
化学化工引用本文复制引用
马金华..微波消解-石墨炉原子吸收光谱法测定川牛膝中铅和镉[J].安徽农业科学,2011,39(24):14618-14619,2.基金项目
四川省教育厅科研基金项目(08zc015). （08zc015）
