| 氢化物发生-原子荧光法测定茶叶中的铅 |
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| 引用本文： | 陈新焕,袁智能,傅明,陈燕.氢化物发生-原子荧光法测定茶叶中的铅[J].化学世界,2002,43(1):19-21. |
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| 作者姓名： | 陈新焕 袁智能 傅明 陈燕 |
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| 作者单位： | 湖南出入境检验检疫局,湖南,长沙,410007 |
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| 摘 要： | 建立了测定茶叶中微量铅的氢化物发生 -原子荧光光谱方法 ,方法灵敏度高 ,准确度好。在选定的实验条件下 ,荧光强度与铅浓度在 0～ 2 80 μg/L范围内呈线性关系 ,相关系数 0 .9996 ,检出限为 0 .2 6 μg/L,回收率 91 .6 %～ 98.7%,相对标准偏差不超过 5 .2 %。
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| 关 键 词： | 铅 原子荧光法 氢化物发生 茶叶 |
| 文章编号： | 0367-6358(2002)01-0019-03 |
Determination of Lead in Tea by Hydride Generation Atomic Fluorescence Spectrometry |
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| CHEN Xin-huan,YUAN Zhi-neng,FU Ming,CHEN Yan.Determination of Lead in Tea by Hydride Generation Atomic Fluorescence Spectrometry[J].Chemical World,2002,43(1):19-21. |
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| Authors: | CHEN Xin-huan YUAN Zhi-neng FU Ming CHEN Yan |
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| Abstract: | An atomic fluorescence spectrometry for the determination of a micro amount of lead in tea with high sensitivity and good accuracy was developed. Under the selected experimental conditions, a linear relationship between the fluorescence intensity and lead concentration exists in the range of 0～280 μg/L with a correlation coefficient 0.9996. The detection limit of the method is as low as 0.26 μg/L. The recovery is 91.6%～98.7%, and the coefficient of variation is not more than 5.2%. |
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| Keywords: | lead atomic fluorescence spectrometry hydride-generation tea |
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