| 石墨炉原子吸收光谱法测定茶多酚中铅 |
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| 引用本文： | 唐森富.石墨炉原子吸收光谱法测定茶多酚中铅[J].光谱实验室,2007,24(2):113-115. |
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| 作者姓名： | 唐森富 |
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| 作者单位： | 中国科学院福建物质结构研究所,福州市,350002 |
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| 摘 要： | 采用石墨炉原子吸收光谱法测定茶多酚中铅.磷酸二氢铵和硝酸镁作为混合基体改进剂,可提高灰化温度,消除基体干扰.方法简便快速、结果准确.相对标准偏差为3.2%,回收率为103%,检出限为0.11mg/kg.
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| 关 键 词： | 石墨炉原子吸收光谱法 茶多酚 铅 |
| 文章编号： | 1004-8138(2007)02-0113-03 |
| 修稿时间： | 2006-08-17 |
Determination of Lead in Tea Polyphenol by Graphite Furnace Atomic Absorption Spectrometry |
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| TANG Sen-Fu.Determination of Lead in Tea Polyphenol by Graphite Furnace Atomic Absorption Spectrometry[J].Chinese Journal of Spectroscopy Laboratory,2007,24(2):113-115. |
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| Authors: | TANG Sen-Fu |
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| Institution: | Fujian Institute of Research on Structure of Matter,The Chinese Academy of Sciences,Fuzhou 350002, P. R. China |
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| Abstract: | The amount of Pb in tea polyphenol was determined by graphite furnace atomic absorption spectrometry with NH4H2PO4 and Mg(NO3)2 as matrix modifier,which enhance the ash temperature and eliminate the matrix interference.The method is rapid,simple and accurate with relative standard deviation of 3.2%,recovery of 103% and detection limit of 0.11mg/kg. |
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| Keywords: | Graphite Furnace Atomic Absorption Spectrometry Tea Polyphenol Lead |
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