| 氢化—AFS法测定青藏高原中草药中的微量砷,锑,硒和汞 |
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| 引用本文： | 索有瑞.氢化—AFS法测定青藏高原中草药中的微量砷,锑,硒和汞[J].光谱学与光谱分析,1997,17(5):103-107. |
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| 作者姓名： | 索有瑞 |
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| 作者单位： | 中国科学院西北高原生物研究所 |
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| 摘 要： | 本文研究了氢化物发生无色散原子荧光法测定青藏高原中草药中的微量砷，锑，硒和汞的方法，在选定的最佳工作条件下，１４种干扰元素的含量低于允许存在量，不影响测定，检出限（μｇ／ｍＬ）为：Ａｓ１．３，Ｓｂ０．３９，Ｓｅ０．２４，Ｈｇ０．４４，９次测定的相对标准偏差（％）的为Ａｓ２．４～４．２Ｓｂ２．５～５．６，Ｓｅ３．１～５．０，Ｈｇ３．８～５．９。４个元素的回收率为９４．７～１０５．４％本方法简便，快速
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| 关 键 词： | 中草药 微量元素 青藏高原 砷 锑 硒 汞 AES |
HYDRIDE GENERATION AFS DETERMINATION OF TRACE ARSENIC,ANTIMONY,SELENIUM AND MERCURY IN CHINESE HERBAL MEDICINE IN QINGHAIXIZANG PLATEAU |
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| Y Suo.HYDRIDE GENERATION AFS DETERMINATION OF TRACE ARSENIC,ANTIMONY,SELENIUM AND MERCURY IN CHINESE HERBAL MEDICINE IN QINGHAIXIZANG PLATEAU[J].Spectroscopy and Spectral Analysis,1997,17(5):103-107. |
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| Authors: | Y Suo |
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| Institution: | Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining. |
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| Abstract: | In this paper, a hydride generation non-dispersive atomic fluorescence spectrometry method has been developed for the determination of trace arsenic, antimony, selenium and mercury in Chinese herbal medicine in Qinghai-Xizang plateau. Under the optimum condition, the quantities of fourteen interference elements are below certain non-interferent limits. The detection limits were as follow (g/mL): As 1.3, Sb 0.39, Se 0.24 and Hg 0.44. The relative standard deviation of 9 determination was As 2.4-4.2%, Sb 2.5-5.6%, Se 3.1-5.0% and Hg 3.8-5.9%. The recovery of four elements was 94.7-105.4%. This method is simple, rapid, sensitive and accurate, and has been successfully tested with As, Sb, Se and Hg in more than 20 kinds of Chinese herbal medicine in Qinghai-Xizang plateau. |
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| Keywords: | Hydride generation AFS Chinese herbal medicine Arsenic Antimony Selenium Mercury |
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