Real-Time Measurement of NOy (Total Reactive Nitrogen Oxide) by Cavity Ring Down Spectrometer (CRDS)
文献类型：期刊论文
| 作者 | Wu Sheng-yang3,4; Hu Ren-zhi3,4 ; Xie Pin-hua3,4; Li Zhi-yan3,4; Liu Xiao-yan5; Lin Chuan1,3; Chen Hao3,4; Wang Feng-yang3,4; Wang Yi-hui2,3; Jin Hua-wei3,4
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| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
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| 出版日期 | 2020-06-01 |
| 卷号 | 40 |
| 关键词 | Cavity ring down spectrometer Thermal dissociation NO2 NOy Catalytic conversion chemiluminescence |
| ISSN号 | 1000-0593 |
| DOI | 10.3964/j.issn.1000-0593(2020)06-1661-07 |
| 通讯作者 | Hu Ren-zhi(rzhu@aiofm.ac.cn) |
| 英文摘要 | Nitrogen oxide, being one of an important trace gas in the atmosphere, may affect the oxidation of the atmosphere, harm the physiological health of the human beings and the animals, and cause photochemical smog, haze, acid depositions and other environmental problems. In recent years, with the rapid development of the economy and the continuous increase of energy consumption in our country, the nitrogen oxide emissions have been remaining at a high level. Therefore, it is of great significance to study the content and chemical properties of the nitrogen oxides in the atmosphere. The methods for determining NOx has tended to become diversified. However, the methods for determining the total reactive nitrogen oxide (NOy) have always been dominated by the catalytic conversion chemiluminescence (CL). In this paper, a method of simultaneous measurement of NO2 and NOy concentration in the ambient air by the thermal dissociation cavity ring down spectrometer (TD-CRDS) is introduced. The performance of the pyrolysis device was optimized, the effective absorption cross section of NO2 was determined, the interferences which may possibly exist in the system (H2O, glyoxal, NH3, N2O and etc. ) was analyzed, and the detection limit (NO2 chamber ; 8. 72x10(8) molecules.cm(3) ; NOy chamber ; 9. 71 x 10(8) molecules.cm(3)) and the errors (NO2 measurement ; 5%; NOy measurement : 12%) were discussed. In order to verify the performance of the system, the concentration of NO2 was determined by comparing the CRDS and the long-path differential optical absorption spectroscopy (LP-DOAS) synchronously, with a linear correlation factor r=0. 960. The concentration of NOy in the atmosphere was determined through comparing with the model Model 42i-NOy analyzer synchronously, with a linear correlation factor r=0. 968. Both consistencies is good. A field experiment was performed for a week at Hefei Science Island. During the measurement, the average concentrations of NO2 and NOy were 4. 11x10(12) molecules.cm(3) and 7. 73x10(12) molecules.cm(3), respectively. According to the average daily variation diagram, it is found that there is a similar trend in the concentration of NO2 and NOy, and it usually starts to decline at 10 : 00 and the lowest value occurs at 15 : 00. Because of its high sensitivity and high time resolution, the CRDS has become a new and simple method for determining the total reactive nitrogen oxide in the ambient air. |
| WOS关键词 | IN-SITU DETECTION ; CHEMILUMINESCENCE METHOD ; AIRCRAFT ; GLYOXAL ; INSTRUMENT ; NITRATE |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000545315300001 |
| 出版者 | OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/71003]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Hu Ren-zhi |
| 作者单位 | 1.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China 2.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 4.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China 5.Anhui Med Univ, Coll Pharm, Hefei 230032, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu Sheng-yang,Hu Ren-zhi,Xie Pin-hua,et al. Real-Time Measurement of NOy (Total Reactive Nitrogen Oxide) by Cavity Ring Down Spectrometer (CRDS)[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2020,40. |
| APA | Wu Sheng-yang.,Hu Ren-zhi.,Xie Pin-hua.,Li Zhi-yan.,Liu Xiao-yan.,...&Jin Hua-wei.(2020).Real-Time Measurement of NOy (Total Reactive Nitrogen Oxide) by Cavity Ring Down Spectrometer (CRDS).SPECTROSCOPY AND SPECTRAL ANALYSIS,40. |
| MLA | Wu Sheng-yang,et al."Real-Time Measurement of NOy (Total Reactive Nitrogen Oxide) by Cavity Ring Down Spectrometer (CRDS)".SPECTROSCOPY AND SPECTRAL ANALYSIS 40(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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