A high-precision NO<i><sub>x</sub></i> chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary

doi:10.1080/03067319.2024.2331599

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	A high-precision NO_x chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary
	Zhang, Meng 1,2,3,4; Peng, Zhi-Min 2; Yang, Qian-Suo 1,3; Ding, Yan-Jun 2; Du, Yan-Jun 4
刊名	INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
	2024-04-01
页码	16
关键词	Chemiluminescence air-fed ozoniser flow-restricting capillary NOx gas sensor
ISSN号	0306-7319
DOI	10.1080/03067319.2024.2331599
通讯作者	Du, Yan-Jun(YanjunDu@ncepu.edu.cn)
英文摘要	In this work, a compact sub-ppb-level NOx chemiluminescence sensor, ideal for outdoor monitoring, was developed based on a well-designed air-fed ozoniser and capillary flow stabiliser. A strategy for the air-fed discharge and the optimal injected air flow rate were investigated with the broadband absorption technique to ensure a stable and sufficient ozone production without NOx by-products. A stable sampling flow rate, which is critical to the relative chemiluminescence method, was achieved by controlling the pressure drop over a capillary tube with a diameter of similar to 100 mu m. The critical point of P-in/P-out >2.5 was revealed with experiments. The performance of the proposed NOx sensor was assessed with the standard gas in the concentration ranges of 60.3 ppb to 12.6 ppm. By analysing the Allan variance, it can be determined that a detection limit of 25 ppt is obtained at an integration time of 285 s. Finally, a three-day continuous monitor of the atmospheric NO/NOx locally in Beijing was conducted, which suggests the great potential of the proposed sensor for environmental measurement.
资助项目	National Key Research and Development Program of China[2022YFB4100402] ; Fundamental Research Funds for the Central Universities[2023YQ002]
WOS关键词	NITRIC-OXIDE ; SPECTROSCOPY ; MECHANISM ; DETECTOR
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:001196854600001
资助机构	National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94833]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Du, Yan-Jun
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 2.Tsinghua Univ, Dept Energy & Power Engn, State Key Lab Power Syst, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China 4.North China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Meng,Peng, Zhi-Min,Yang, Qian-Suo,et al. A high-precision NO_x chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY,2024:16.
APA	Zhang, Meng,Peng, Zhi-Min,Yang, Qian-Suo,Ding, Yan-Jun,&Du, Yan-Jun.(2024).A high-precision NO_x chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary.INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY,16.
MLA	Zhang, Meng,et al."A high-precision NO_x chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary".INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2024):16.