中国药业Issue(14)：54-55,56,3.
磷酸三丁酯萃取-石墨炉原子吸收分光光度法测定海藻多糖空心胶囊中痕量六价铬
Determination of Trace Hexavalent Chromium in Carrageenan Vacant Capsules by Tributyl Phosphate Extracting and Graphite Furnace Atomic Absorption Spectroscopy
张毅 1郭盈杉1
作者信息
- 1. 河北省食品药品检验院，河北 石家庄 050011
- 折叠
摘要
Abstract
Objective To establish a method of graphite furnace atomic absorption spectroscopy for quantitative determination of trace hexavalent chromium in Carrageenan Vacant Capsules. Methods The sample was extracted with Tributly Phosphate(TBP)and digested by the microwave dissolution system. The trace hexavalent chromium in Carrageenan Vacant Capsules was determined by the graphite furnace atomic absorption spectroscopy. Results The sample concentration of chromium within the range of 0 ~ 40 ng / mL showed the good linear relation with the absorbance( r = 0. 999 7)and the average recovery rate was 88. 08% ,RSD = 0. 78%( n = 9). Conclusion This method is accurate,reliable,easy to operate,highly sensitive and suitable for the quality control of hexavalent chromium in Car-rageenan Vacant Capsules.关键词
石墨炉原子吸收分光光度法/海藻多糖空心胶囊/六价铬Key words
graphite furnace atomic absorption spectrometry/Carrageenan Vacant Capsules/Cr(Ⅵ)分类
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张毅,郭盈杉..磷酸三丁酯萃取-石墨炉原子吸收分光光度法测定海藻多糖空心胶囊中痕量六价铬[J].中国药业,2014,(14):54-55,56,3.
