| 一氧化氮标准气体中二氧化氮杂质FTIR定量方法研究及标气质量分析 |
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| 引用本文： | 王德发,张体强,刘智勇,杨婧,韩桥.一氧化氮标准气体中二氧化氮杂质FTIR定量方法研究及标气质量分析[J].中国环境监测,2022,38(2):185-190. |
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| 作者姓名： | 王德发 张体强 刘智勇 杨婧 韩桥 |
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| 作者单位： | 中国计量科学研究院, 北京 100029;中国环境监测总站, 国家环境保护环境监测质量控制重点实验室, 北京 100012 |
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| 基金项目： | 国家重点研发计划项目(2016YFF0201101);市场监督管理总局质量技术基础能力建设项目(ANL1908);中国计量科学研究院基本科研业务费项目(28-AKY1620,AKY1967,AKYZD2008);国家标准物质资源共享平台项目(28-APT1902-10) |
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| 摘 要： | 一氧化氮标准气体在我国空气质量监测工作中广泛用于氮氧化物分析仪的校准,标准气体的质量对环境空气中氮氧化物的测量结果也有着显著的影响.利用傅里叶变换红外光谱仪建立了一套精确测量低浓度二氧化氮方法,并对一氧化氮标准气体产品中二氧化氮杂质进行了测量.结果显示有少部分样品中存在较高浓度的二氧化氮杂质.进一步讨论了可能导致一氧化...
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| 关 键 词： | 傅里叶变换红外光谱 标准气体 一氧化氮 二氧化氮 测量 |
| 收稿时间： | 2021/2/25 0:00:00 |
| 修稿时间： | 2021/11/30 0:00:00 |
Measurement of Nitrogen Dioxide Impurity in Nitrogen Monoxide Standard Gas by FTIR with Discussion on the Influence Factors to the Mixture Quality |
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| WANG Def,ZHANG Tiqiang,LIU Zhiyong,YANG Jing,HAN Qiao.Measurement of Nitrogen Dioxide Impurity in Nitrogen Monoxide Standard Gas by FTIR with Discussion on the Influence Factors to the Mixture Quality[J].Environmental Monitoring in China,2022,38(2):185-190. |
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| Authors: | WANG Def ZHANG Tiqiang LIU Zhiyong YANG Jing HAN Qiao |
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| Institution: | National Institute of Metrology, Beijing 100029, China;State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing 100012, China |
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| Abstract: | Standard gas of nitrogen monoxide is widely used in the field of domestic air quality monitoring for the calibration of nitrogen oxides monitor,thus the quality of standard gas will give great effect on the measurement results of nitrogen oxides in air.In this paper,a FTIR system for the accurate measurement of low concentration NO2 was developed and used to measure the impurity of NO2 in some nitrogen monoxide standard gases.Results showed there were high concentration of NO2 impurity in some samples.This paper also discussed the possible reasons,which could lead to high level NO2 impurity,and the effects of these phenomena on the accurate measurement of nitrogen oxides in air by the chemiluminescent nitrogen oxides analyzer.It''s proposed that attention should be paid to the content of nitrogen dioxide impurity in the standard gas products of nitrogen monoxide in order to calibrate chemiluminescent analyzer accurately. |
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| Keywords: | FTIR standard gas nitrogen monoxide nitrogen dioxide measurement |
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