光腔衰荡光谱法测定气体中微痕量水不确定度评估

周鑫; 周泽义

doi:10.3969/j.issn.1000-1158.2012.02.17

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计量学报 ›› 2012, Vol. 33 ›› Issue (2) : 178-180. DOI: 10.3969/j.issn.1000-1158.2012.02.17

光腔衰荡光谱法测定气体中微痕量水不确定度评估

周鑫,周泽义

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The Uncertainty Evaluation of Determining the Moisture in Gases by the Method of Cavity Ring Down Spectroscopy

ZHOU Xin,ZHOU Ze-yi

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摘要

介绍了基于光腔衰荡光谱法测定气体中的微量水的方法原理,该方法适用于含量为0.2×10^-9～20×10^-6 mol/mol的所有气体中水分的测定。建立了光谱分析法的原始数学模型,对测定方法的不确定度进行了评估,结果表明该方法的扩展不确定度为（8～20）×10^-9 mol/mol（k=2,p=95%）。

Abstract

A new method for determining the moisture in gases by the cavity ring down spectroscopy is available to measure the concentration between 0.2×10^-9 mol/mol and 20×10^-6 mol/mol.A mathematical model is established for the uncertainty evaluation,and the results of the expanded uncertaunties are in the range of（8～20）×10^-9 mol/mol （k=2, p=95%）.

导出引用

周鑫,周泽义. 光腔衰荡光谱法测定气体中微痕量水不确定度评估[J]. 计量学报. 2012, 33(2): 178-180 https://doi.org/10.3969/j.issn.1000-1158.2012.02.17

ZHOU Xin,ZHOU Ze-yi. The Uncertainty Evaluation of Determining the Moisture in Gases by the Method of Cavity Ring Down Spectroscopy[J]. Acta Metrologica Sinica. 2012, 33(2): 178-180 https://doi.org/10.3969/j.issn.1000-1158.2012.02.17

中图分类号： TB99

参考文献

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