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《Journal of Ankang Teachers College》 2002-04
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Determination of Trace Selenium in Tea of Qinba by Flame Atomic Absorption Spectrometry

XIANG Jiming 1, FANG Wenxin 2, JIN Zhaoyang 1, CEI Jiangchen 1 (1.The Chemistry & Life-science Department, Ankang Teachers College; 2.The Health Department of Hanbin District, Ankang 725000, China)  
Selenium element in tea can be determined by Flame Atomic Absorption Spectrometry. The samples of tea were dissolved by nitric acid and perchlovic acid, regarding nitric acid Ni as the fundamental improver. It not only avoids the interference for Fe. Mg. Na. K. SO 4 2- ; but also makes absorbable signal attain the stability. The linear relationship was very good between the concentrations of selenium in the range of 0-4-mg/L.
【CateGory Index】: O657.31
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