| 火焰原子吸收法测定秦巴山区茶叶中微量硒 |
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| 引用本文： | 向纪明,方文兴,金朝阳,崔江晨.火焰原子吸收法测定秦巴山区茶叶中微量硒[J].安康学院学报,2002,14(4):59-61. |
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| 作者姓名： | 向纪明 方文兴 金朝阳 崔江晨 |
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| 作者单位： | 1. 安康师范专科学校,化学与生命科学系,陕西,安康,725000;2. 安康市汉滨区,防疫站,陕西,安康,725000 |
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| 摘 要： | 用火焰原子吸收光谱法测定了秦巴山区茶叶中微量硒的含量,用HNO3-HClO4为茶叶的分解试剂,湿法硝化分解茶叶,以Ni(NO3)2为基体改进剂,排除Fe、Mg、Na、K、SO42-等的干扰,使吸收信号达到稳定,硒浓度在0～40mg/L范围内呈良好线性关系.
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| 关 键 词： | 硒 茶叶 测定 火焰原子吸收法 |
| 文章编号： | 1009-024X(2002)04-0059-03 |
| 修稿时间： | 2002年10月8日 |
Determination of Trace Selenium in Tea of Qinba by Flame Atomic Absorption Spectrometry |
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| XIANG Jiming ,FANG Wenxin ,JIN Zhaoyang ,CEI Jiangchen.Determination of Trace Selenium in Tea of Qinba by Flame Atomic Absorption Spectrometry[J].Journal of Ankang Teachers College,2002,14(4):59-61. |
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| Authors: | XIANG Jiming FANG Wenxin JIN Zhaoyang CEI Jiangchen |
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| Institution: | XIANG Jiming 1,FANG Wenxin 2,JIN Zhaoyang 1,CEI Jiangchen 1 |
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| Abstract: | 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. |
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| Keywords: | selenium flame atomic absorption spectrometry tea |
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