| 高压密封罐消解原子荧光光谱法同时测定茶叶中硒和锡的研究 |
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| 引用本文： | 陆洋,谭红,谢锋,张清海,舒海霞.高压密封罐消解原子荧光光谱法同时测定茶叶中硒和锡的研究[J].贵州科学,2008,26(2):39-43. |
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| 作者姓名： | 陆洋 谭红 谢锋 张清海 舒海霞 |
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| 作者单位： | 贵州科学院贵州省理化测试分析研究中心,贵州,贵阳,550002 |
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| 摘 要： | 建立密封消解原子荧光光谱法同时测定茶叶中硒和锡的方法．对密封消解原子荧光光谱法同时测定硒和锡的各参数条件进行研究．在最佳测试条件下，硒方法检出限为0．32μg／L，测定相对标准偏差为1．8％，样品加标回收率为96．4％～98．8％；锡方法检出限为0．30μg／L，测定相对标准偏差为3．5％，样品回收率为92．7％～102．0％．本法具有快速、准确、灵敏度高、精密度好等优点，用于茶叶中总硒和总锡的测定，结果满意．
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| 关 键 词： | 硒 锡 高压密封罐消解 原子荧光光谱法 茶叶 |
SIMULTANEOUS DETERMINATION OF SELENIUM AND TIN IN TEA BY SEALING DIGESTION AFS-230E |
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| LU Yang,TAN Hong,XIE Feng,ZHANG Qing-hai,SHU Hai-xia.SIMULTANEOUS DETERMINATION OF SELENIUM AND TIN IN TEA BY SEALING DIGESTION AFS-230E[J].Guizhou Science,2008,26(2):39-43. |
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| Authors: | LU Yang TAN Hong XIE Feng ZHANG Qing-hai SHU Hai-xia |
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| Institution: | Guizhou Physical Test and Chemical Analysis Center;GAS;Guiyang 550002;Guizhou |
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| Abstract: | A method was established for simultaneous determination of selenium and tin in tea by sealing digestion AFS- 230E. Parameters of atomic fluorescence spectrometry for the method were studied. Under the optimum testing conditions, the detection limit of selenium is 0.32μg/L with RSD 1.8% and sample recovery rate of 96.4% ~ 98, 8%. And the detection limit of tin is 0. 30μg/L with RSD 3, 5% and sample recovery rate of 92.7% -102.0%. The method is rapid, convenient, accurate, sensitive and suitable for determination of selenium and tin in tea. |
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| Keywords: | selenium tin sealing digestion atomic fluorescence spectrometry tea |
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