A high-precision NOx chemiluminescence sensor of sub-ppb-level based on air-fed ozoniser and flow-restricting capillary
文献类型：期刊论文
| 作者 | Zhang M(张猛)1,2,3,4; Peng, ZhiMin2 ; Yang QS(杨乾锁)1,3; Ding, YanJun2; Du, YanJun4; Yang QS(杨乾锁); Peng ZM(彭志敏)
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| 刊名 | INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
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| 出版日期 | 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. |
| 分类号 | Q3 |
| WOS关键词 | NITRIC-OXIDE ; SPECTROSCOPY ; MECHANISM ; DETECTOR |
| 资助项目 | National Key Research and Development Program of China[2022YFB4100402] ; Fundamental Research Funds for the Central Universities[2023YQ002] |
| 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 |
| 其他责任者 | Du, Yan-Jun |
| 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 |
| 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 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.,...&Peng ZM.(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. |
入库方式： OAI收割
来源：力学研究所
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