| 微波消解-冷原子荧光分析法测定泽泻和南板蓝根的痕量汞 |
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| 引用本文： | 胡娟,程永华,赖源发.微波消解-冷原子荧光分析法测定泽泻和南板蓝根的痕量汞[J].福建医科大学学报,2007,41(1):81-84. |
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| 作者姓名： | 胡娟 程永华 赖源发 |
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| 作者单位： | 福建中医学院,药学系,中药学福建省高等学校重点实验室,福州,350108 |
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| 摘 要： | 目的 建立泽泻、南板蓝根中痕量汞的测定方法.对样品的前处理方法和仪器工作条件进行探讨和优化.方法 采用硝酸-氢氟酸-过氧化氢体系微波消解-冷原子荧光法测定闽产中药建泽泻、南板蓝根中痕量汞.结果 平均回收率95.6%～104.8%,精密度＜3.5%.仪器工作参数:测定波长253.7 nm,负高压410 V,载气流量1.5 L/min,屏蔽气流量0.1 L/min,进样量0.5 L/min,样品还原时间40 s.结论 建立的微波消解-冷原子荧光法方便、快捷、准确,可用于南板蓝根、泽泻中痕量汞测定.
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| 关 键 词： | 泽泻 板蓝根 汞 微波消解 冷原子荧光法 微波 福建 |
| 文章编号： | 1672-4194（2007）01-0081-04 |
| 修稿时间： | 2006-10-30 |
Determination of Trace Mercury in Alisma orientalis(Sam) Juzepcz and Baphicacanthus Chsia(Nees) Bremek by Microwave Digestion and Cold Atomic Fluorescence Spectrometry |
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| Hu Juan,Cheng Yonghua,Lai Yuanfa.Determination of Trace Mercury in Alisma orientalis(Sam) Juzepcz and Baphicacanthus Chsia(Nees) Bremek by Microwave Digestion and Cold Atomic Fluorescence Spectrometry[J].Journal of Fujian Medical University,2007,41(1):81-84. |
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| Authors: | Hu Juan Cheng Yonghua Lai Yuanfa |
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| Institution: | Division of Pharmacologicalogy, Fujian University of Traditional Chinese Medicine, Fuzhou 350108, China |
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| Abstract: | Objective To study the trace mercury in Alisma orientalis(Sam) Juzepcz and Baphicacanthus Chsia(Nees) Bremek produced in Fujian province.Methods The cold atomic fluorescence spectrometry with HNO_3-HF-H_2O_2microwave digestion was used.The pretreatment sample and the experimental conditions comprised selectcon of digestion reagent,microwave digestion,machine work conditions:determination wavelength 253.7 nm,negative high pressure 410 V,carrier gas flow rate 1.5(L/min),sample volume 0.5 L/min,sample reduction time 40 s.Results The recovery ratio was 95.6%~(104.8)%,standard deviation rate(RSD) was smaller than 3.5%.Conclusion This method is proved to be efficient. |
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| Keywords: | Alisma orientale radix isatidis mercury cold atomic fluorecence spectrometry microwaves Fujian |
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