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Near-ultraviolet Incoherent Broadband Cavity Enhanced Absorption Spectroscopy for OClO and CH2O in Cl-initiated Photooxidation Experiment (cited: 3)
Mei-li Dong,Wei-xiong Zhao,Ming-qiang Huang,Wei-dong Chen,Chang-jin Hu,Xue-jun Gu,Shi-xin Pei,Wei Huang,Wei-jun Zhang
Author NameAffiliationE-mail
Mei-li Dong Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaLab of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China  
Wei-xiong Zhao Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaLab of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China  
Ming-qiang Huang Department of Environmental Science and Engineering, Tan Kah Kee College, Xiamen University, Xiamen 363105, China  
Wei-dong Chen Laboratoire de Physicochimie de l'Atmosphère, Université du Littoral C?te d'Opale, 189A Av.Mau-rice Schumann, 59140 Dunkerque, France  
Chang-jin Hu Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaLab of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China  
Xue-jun Gu Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaLab of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China  
Shi-xin Pei School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China  
Wei Huang Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaLab of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China huangwei@aiofm.ac.cn 
Wei-jun Zhang Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, ChinaLab of Atmospheric Physico-Chemistry, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China wjzhang@aiofm.ac.cn 
Abstract:
Chlorine dioxide (OClO) is an important indicator for Cl-activation. The monitoring of OClO appears to be crucial for understanding the chemistry of Cl-initialed oxidation and its impact on air quality in polluted coastal regions and industrialized areas. We report the development of a Xe arc lamp based near-ultraviolet (335-375 nm) incoherent broad-band cavity enhanced absorption spectroscopy (IBBCEAS) spectrometer for quantitative assessment of OClO in an atmospheric simulation chamber. The important intermediate compound CH2O, and other key atmospheric trace species (NO2) were also simultaneously measured. The instrumental performance shows a strong potential of this kind of IBBCEAS instrument for field and laboratory studies of atmospheric halogen chemistry.
Key words:  Incoherent broadband cavity enhanced absorption spectroscopy, Near-ultraviolet, OClO, CH2O
FundProject:
近紫外非相干宽带腔增强吸收光谱应用于Cl原子启动的光化学反应过程中OClO及CH2O的探 (cited: 3)
董美丽,赵卫雄,黄明强,陈卫东,胡长进,顾学军,裴世鑫,黄伟*,张为俊*
摘要:
OClO是Cl原子活性的一个重要的指示剂,对OClO的检测有利于更好的理解Cl原子的化学反应过程及其对沿海及工业污染地区空气质量的影响. 本工作建立了一套基于氙灯的近紫外(335~375 nm)非相干宽带腔增强吸收光谱系统,并将其应用于烟雾箱中OClO的定量测量研究,同时测量了反应过程中重要的中间产物CH2O及大气中重要的痕量气体NO2. 结果表明,非相干宽带腔增强吸收光谱可应用于实验室大气卤素化学方面的研究.
关键词:  非相干宽带腔增强吸收光谱,近紫外,OClO,CH2O
DOI:10.1063/1674-0068/26/02/133-139
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