杨贵生, 祝建国, 张清华. 王水-过氧化氢热浸提原子荧光光谱法快速测定原生中草药中的汞[J]. 分析测试技术与仪器, 2016, 22(2): 116-119. DOI: 10.16495/j.1006-3757.2016.02.010
引用本文: 杨贵生, 祝建国, 张清华. 王水-过氧化氢热浸提原子荧光光谱法快速测定原生中草药中的汞[J]. 分析测试技术与仪器, 2016, 22(2): 116-119. DOI: 10.16495/j.1006-3757.2016.02.010
YANG Gui-sheng, ZHU Jian-guo, ZHANG Qing-hua. Rapid Determination of Mercury in Native Chinese Herbal Medicine by Hydride Generation-Atomic Fluorescence Spectrometry with Aqua Regia-Hydrogen Peroxide Heat Extraction[J]. Analysis and Testing Technology and Instruments, 2016, 22(2): 116-119. DOI: 10.16495/j.1006-3757.2016.02.010
Citation: YANG Gui-sheng, ZHU Jian-guo, ZHANG Qing-hua. Rapid Determination of Mercury in Native Chinese Herbal Medicine by Hydride Generation-Atomic Fluorescence Spectrometry with Aqua Regia-Hydrogen Peroxide Heat Extraction[J]. Analysis and Testing Technology and Instruments, 2016, 22(2): 116-119. DOI: 10.16495/j.1006-3757.2016.02.010

王水-过氧化氢热浸提原子荧光光谱法快速测定原生中草药中的汞

Rapid Determination of Mercury in Native Chinese Herbal Medicine by Hydride Generation-Atomic Fluorescence Spectrometry with Aqua Regia-Hydrogen Peroxide Heat Extraction

  • 摘要: 采用王水-过氧化氢预氧化水浴热浸提处理样品, 应用原子荧光光谱法快速检测原生中草药中痕量汞.其方法回收率在98.6%~105.4%之间, 相对标准偏差在3.0%~7.4%之间, 标准系列质量浓度在0.000~6.000μg/L范围内线性关系良好, 相关系数为0.9999, 一元线性回归方程为:IF=301.512C+1.235, 方法检出限达到0.0216μg/L.试验证实, 方法具有简便、快速、灵敏度高、取样量少等优点, 为原生中草药中痕量汞的检测提供了有效的分析方法.

     

    Abstract: A method for the rapid determination of trace mercury in Chinese herbal medicine by hydride generation-atomic fluorescence spectrometry is established. The samples were dissolved by aqua regia-hydrogen peroxide oxidation in a hot water bath, the recoveries were 98.6%~105.4%, the relative standard deviations were 3.0%~7.4%, when the concentration of standard series in the range of 0.000~6.000 μg/L, the standard curve liner relationship was good, the correlation coefficient was 0.999 9, the linear regression equation was: IF=301.512C+1.235, the detection limit of the method was 0.021 6 μg/L. The method is simple, rapid, highly sensitive with less sample quantity, the method is effective for the analysis of trace amount of mercury in native Chinese herbal medicine.

     

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