| 大气颗粒物样品波长色散X射线荧光光谱法无机元素测量结果不确定度评估 |
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| 引用本文： | 李玉武,马莉.大气颗粒物样品波长色散X射线荧光光谱法无机元素测量结果不确定度评估[J].岩矿测试,2007,26(3):219-224. |
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| 作者姓名： | 李玉武 马莉 |
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| 作者单位： | 国家环境分析测试中心,北京,100029 |
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| 基金项目： | 国家科技部分析测试新技术新方法项目;科技部科技基础条件平台建设计划 |
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| 摘 要： | 分析了用X射线荧光光谱法（XRF）测定大气颗粒物样品（TSP）中Al、Na、Cl、Mg、Cu、zn、Ca、S、Fe、Mn、K、Pb、Cd、Ba等无机元素结果的不确定度来源，对石英滤膜颗粒物样品无机元素含量测量不确定度进行了评估。计算结果表明，XRF测定中无机元素薄膜标样示值误差和工作曲线拟合误差是测量结果不确定度的主要来源。对计算测量不确定度的公式合成法和蒙特卡洛（Monte Carlo）模拟法的结果进行了比较，两种计算方法所得的结果一致。
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| 关 键 词： | 测量不确定度评估 波长色散X射线荧光光谱法 大气颗粒物 蒙特卡洛模拟 |
| 文章编号： | 0254-5357（2007）03-0219-06 |
| 修稿时间： | 2006-07-012006-09-04 |
Evaluation of Measurement Uncertainty for the Determination of Inorganic Elements in Aerosols by Wavelength Dispersive X-ray Fluorescence Spectrometry |
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| LI Yu-wu,MA Li.Evaluation of Measurement Uncertainty for the Determination of Inorganic Elements in Aerosols by Wavelength Dispersive X-ray Fluorescence Spectrometry[J].Rock and Mineral Analysis,2007,26(3):219-224. |
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| Authors: | LI Yu-wu MA Li |
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| Institution: | National Research Center for Environmental Analysis and Measurements, Beijing 100029, China |
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| Abstract: | In this paper, the measurement uncertainty for the determination of inorganic elements, such as AI, Na, Cl, Mg, Cu, Zn, Ca, S, Fe, Mn, K, Pb, Cd and Ba in aerosols is evaluated by wavelength dispersive X-ray fluorescence spectrometry. The sources of random error were analyzed. It is shown that the measurement uncertainty is mainly from the fitting error of calibration regression curve and the error of element concentration in the standard films. The calculation results of uncertainty from formula method are in aggreement with those from Monte Carlo simulation method. |
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| Keywords: | evaluation of measurement uncertainty wavelength dispersive X-ray fluorescence spectrometry aerosol Monte Carlo simulation |
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