| 氢化物发生-原子荧光法测定高温合金中痕量铋的测量不确定度评定 |
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| 引用本文： | 杨春晟,张艳.氢化物发生-原子荧光法测定高温合金中痕量铋的测量不确定度评定[J].化学分析计量,2012,21(4):13-15. |
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| 作者姓名： | 杨春晟 张艳 |
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| 作者单位： | 北京航空材料研究院,北京,100095 |
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| 摘 要： | 介绍氢化物发生–原子荧光光谱法(HG–AFS)测定高温合金中痕量铋(Bi)的不确定度评定方法,建立了数学模型,分析了测量过程中不确定度的来源,并对不确定度分量进行了量化。当高温合金中铋含量为0.00016%时,扩展不确定度为0.00002%(k=2)。
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| 关 键 词： | 氢化物发生–原子荧光法 高温合金 痕量铋 不确定度 |
Uncertainty Evaluation of the Determination of Bismuth in Super Alloys by Hydride Generation-Atomic Fluorescence Spectrometry |
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| Yang Chunsheng
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Zhang Yan.Uncertainty Evaluation of the Determination of Bismuth in Super Alloys by Hydride Generation-Atomic Fluorescence Spectrometry[J].Chemical Analysis And Meterage,2012,21(4):13-15. |
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| Authors: | Yang Chunsheng Zhang Yan |
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| Institution: | Yang Chunsheng, Zhang Yah (AVIC Beijing Institute of Aeronautical Materials, Beijing 100095, China) |
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| Abstract: | Uncertainty evaluation of measurement of bismuth in super alloys by hydride generation-atomic fluorescence spectrometry （HG-AFS） was introuduced. The mathematical model of uncertaint：l was established, the sources of measurement uncertainty were analyzed and calculated. The expanded uncertainty was 0.000 02%（k=-2） as bismuth content in the super alloy was 0.000 16%. |
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| Keywords: | hydride generation-atomic fluorescence spectrometry super alloy trace bismuth uncertainty |
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