| 原子荧光光谱法测定中药材中砷的不确定度评定 |
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| 引用本文： | 谷筱玉,谢景千,龙海荣,韦筱媚. 原子荧光光谱法测定中药材中砷的不确定度评定[J]. 光谱实验室, 2012, 29(3): 1420-1424 |
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| 作者姓名： | 谷筱玉 谢景千 龙海荣 韦筱媚 |
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| 作者单位： | 广西药用植物园南方药物研究检测中心 南宁市长堽路189号 530023 |
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| 摘 要： | 建立氢化物发生-原子荧光光谱法测定中药材中砷含量的不确定度评定的方法,为评价测量结果提供科学依据。检测结果的不确定度由标准物质、标准溶液的配制、校准曲线的拟合、样品定容体积、样品称样量、测量重复性及回收率等所引入的不确定度分量组成。对合成不确定度进行计算,当中药材中砷含量为0.340mg/kg时,扩展不确定度为0.012mg/kg(k=2)。
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| 关 键 词： | 氢化物发生-原子荧光光谱法 不确定度 砷 中药材 |
Evaluation of Uncertainty in Determination of Arsenic in Chinese Medicinal Materials by Atomic Fluorescence Spectrometry |
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| GU Xiao-Yu , XIE Jing-Qian , LONG Hai-Rong , WEI Xiao-Mei. Evaluation of Uncertainty in Determination of Arsenic in Chinese Medicinal Materials by Atomic Fluorescence Spectrometry[J]. Chinese Journal of Spectroscopy Laboratory, 2012, 29(3): 1420-1424 |
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| Authors: | GU Xiao-Yu XIE Jing-Qian LONG Hai-Rong WEI Xiao-Mei |
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| Affiliation: | GU Xiao-Yu XIE Jing-Qian LONG Hai-Rong WEI Xiao-Mei(Southern Medicine Research and Test Center of Guangxi Botanical Garden of Medicinal Plants,Nanning 530023,P.R.China) |
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| Abstract: | The method of evaluating the uncertainty for arsenic measurement in Chinese medical materials by hydride generation-atomic fluorescence spectrometry(AFS) was established,which can provide the evidence for evaluation of the measurement results.The uncertainty was caused by standard material,preparation process of standard solution,fitting of working curve,sample dilution volume,sample mass,repeatability measurement and the recovery.The expanded uncertainty was 0.012mg/kg,and arsenic content in Chinese medicinal material was 0.340mg/kg. |
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| Keywords: | Hydride Generation-Atomic Fluorescence Spectrometry Uncertainty Arsenic Chinese Medicinal Materials |
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