| 氢化物发生-原子荧光光谱法测定中草药中的硒 |
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| 引用本文： | 杨莉丽,张德强,高英,苑春刚,张艳欣,孙汉文.氢化物发生-原子荧光光谱法测定中草药中的硒[J].光谱学与光谱分析,2003,23(2):368-370. |
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| 作者姓名： | 杨莉丽 张德强 高英 苑春刚 张艳欣 孙汉文 |
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| 作者单位： | 1. 河北大学化学与环境科学学院,河北,保定,071002
2. 河北省科学院,河北,石家庄,050081 |
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| 摘 要： | 本文建立了氢化物发生-原子荧光光谱法测定中草药中的微量硒的分析方法。研究了仪器的工作条件、试剂对硒原子荧光强度的影响及硒(Ⅵ)的还原条件,探讨了共存离子对硒测定的干扰和消除方法,方法的检出限为0.21μg·L~(-1)。利用本方法成功地测定了10种中草药中的微量硒,回收率为95％～105％。方法简便、快速、灵敏、准确。
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| 关 键 词： | 氢化物发生 原子荧光光谱法 中草药 硒 |
| 文章编号： | 1000-0593(2003)02-0368-03 |
| 修稿时间： | 2001年11月19 |
Determination of Selenium in Chinese Herbs by Hydride Generation Atomic Fluorescence Spectrometry |
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| YANG Li-li,ZHANG De-qiang,GAO Ying,YUAN Chun-gang,ZHANG Yan-xin and SUN Han-wen
. College of Chemistry & Environmental Science,Hebei University,Hooding ,China
. Hebei Academy of Sciences,Shijiazhuang ,China.Determination of Selenium in Chinese Herbs by Hydride Generation Atomic Fluorescence Spectrometry[J].Spectroscopy and Spectral Analysis,2003,23(2):368-370. |
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| Authors: | YANG Li-li ZHANG De-qiang GAO Ying YUAN Chun-gang ZHANG Yan-xin and SUN Han-wen
College of Chemistry & Environmental Science Hebei University Hooding China
Hebei Academy of Sciences Shijiazhuang China |
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| Institution: | College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China. |
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| Abstract: | A method for the determination of selenium by hydride generation atomic fluorescence spectrometry (HG-AFS) was proposed in this paper. The experimental conditions including the temperature of atomizer, height of atomizer, lamp current, flow rate of carrier gas, concentration of KBH4, and acidic medium that affect the generation of hydride and the sensitivity of the method were investigated and optimized. The influence of coexisting foreign ions on the determination of selenium was also investigated. The detection limit of the proposed method was found to be 0.21 ng.mL-1. The proposed method was successfully applied to the determination of selenium in ten kinds of Chinese herbs, and the recoveries were in the range of 95%-105%. |
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| Keywords: | Hydride generation Atomic fluorescence spectrometry Chinese herbs Selenium |
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