| 氢化物-原子荧光光谱法测定生活饮用水中砷含量不确定度评定 |
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| 引用本文： | 苗立新.氢化物-原子荧光光谱法测定生活饮用水中砷含量不确定度评定[J].中国卫生工程学,2011(4):316-318. |
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| 作者姓名： | 苗立新 |
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| 作者单位： | 长治市疾病预防控制中心; |
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| 摘 要： | 目的建立氢化物-原子荧光光谱法测定生活饮用水中砷含量不确定度的分析方法,找出其主要影响因素。方法建立不确定度的数学模型,系统分析计算不确定度的各个分量。结果按GB/T 5750-2006(6.1)氢化物-原子荧光光谱法测定生活饮用水中的砷,当结果为1.10μg/L时,其扩展不确定度为0.08μg/L(k=2)。结论测量中标准曲线拟合和样品重复测量引入的不确定度相对较大,是该方法影响测量结果不确定度的关键。
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| 关 键 词： | 氢化物-原子荧光光谱法 砷 不确定度 评定 |
Uncertainty of Arsenic in Drinking Water Determined by Hydride Generation Atomic Fluorescence Spectrometry |
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| MIAO Li-xin.Changzhi Center for Disease Control , Prevention,Changzhi Shanxi ,China.Uncertainty of Arsenic in Drinking Water Determined by Hydride Generation Atomic Fluorescence Spectrometry[J].Chinese Journal of Public Health Engineering,2011(4):316-318. |
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| Authors: | MIAO Li-xinChangzhi Center for Disease Control Prevention Changzhi Shanxi China |
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| Institution: | MIAO Li-xin.Changzhi Center for Disease Control and Prevention,Changzhi Shanxi 046011,China |
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| Abstract: | Objective To establish the analysis method for uncertainty of arsenic in drinking water by hydride atomic fluorescence spectrometry,and identify the main effect factors.Methods A mathematical model of uncertainty was set up to analyze and calculate the various components of uncertainty.Results According to GB/T 5750-2006（6.1）,when the result was 1.10 μg / L,its expanded uncertainty was 0.08 μg / L（k = 2）.Conclusion The most primary influential factors for experiment results are standard curve fitting and repeated measurement in the determination process. |
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| Keywords: | Hydride-atomic fluorescence spectrometry Arsenic Uncertainty Assessment |
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