| A high-precision NOx chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary | |
Zhang M(张猛)1,2,3,4; Peng, ZhiMin3 ; Yang QS(杨乾锁)2,4; Ding, YanJun3; Du, YanJun1
| |
| Corresponding Author | Du, Yan-Jun(YanjunDu@ncepu.edu.cn) |
| Source Publication | INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
 |
| 2024-04-01 | |
| Pages | 16 |
| ISSN | 0306-7319 |
| Abstract | 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. |
| Keyword | Chemiluminescence air-fed ozoniser flow-restricting capillary NOx gas sensor |
| DOI | 10.1080/03067319.2024.2331599 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001196854600001 |
| WOS Keyword | NITRIC-OXIDE ; SPECTROSCOPY ; MECHANISM ; DETECTOR |
| WOS Research Area | Chemistry ; Environmental Sciences & Ecology |
| WOS Subject | Chemistry, Analytical ; Environmental Sciences |
| Funding Project | National Key Research and Development Program of China[2022YFB4100402] ; Fundamental Research Funds for the Central Universities[2023YQ002] |
| Funding Organization | National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities |
| Classification | Q3 |
| Ranking | 1 |
| Contributor | Du, Yan-Jun |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94834 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.North China Elect Power Univ, Sch Control & Comp Engn, Beijing, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China; 3.Tsinghua Univ, Dept Energy & Power Engn, State Key Lab Power Syst, Beijing, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang M,Peng, ZhiMin,Yang QS,et al. A high-precision NOx 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 | 张猛,Peng, ZhiMin,杨乾锁,Ding, YanJun,&Du, YanJun.(2024).A high-precision NOx chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary.INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY,16. |
| MLA | 张猛,et al."A high-precision NOx chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary".INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2024):16. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment