| Title: | Review of technologies and their applications for the speciated detection of RO(2) radicals |
| Address: | "State Key Joint Laboratory of Environmental Simulation and Pollution Control, State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. State Key Joint Laboratory of Environmental Simulation and Pollution Control, State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. Electronic address: k.lu@pku.edu.cn. State Key Joint Laboratory of Environmental Simulation and Pollution Control, State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. Electronic address: yhzhang@pku.edu.cn" |
| DOI: | 10.1016/j.jes.2022.09.028 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "Peroxy radicals (RO(2)), which are formed during the oxidation of volatile organic compounds, play an important role in atmospheric oxidation reactions. Therefore, the measurement of RO(2), especially distinct species of RO(2) radicals, is important and greatly helps the exploration of atmospheric chemistry mechanisms. Although the speciated detection of RO(2) radicals remains challenging, various methods have been developed to study them in detail. These methods can be divided into spectroscopy and mass spectrometry technologies. The spectroscopy methods contain laser-induced fluorescence (LIF), UV-absorption spectroscopy, cavity ring-down spectroscopy (CRDS) and matrix isolation and electron spin resonance (MIESR). The mass spectrometry methods contain chemical ionization atmospheric pressure interface time-of-flight mass spectrometry (CI-APi-TOF), chemical ionization mass spectrometry (CIMS), CI-Orbitrap-MS and the third-generation proton transfer reaction-time-of-flight mass spectrometer (PTR3). This article reviews technologies for the speciated detection of RO(2) radicals and the applications of these methods. In addition, a comparison of these techniques and the reaction mechanisms of some key species are discussed. Finally, possible gaps are proposed that could be filled by future research into speciated RO(2) radicals" |
| Keywords: | Mass Spectrometry *Atmospheric Pressure *Volatile Organic Compounds Spectrum Analysis Atmospheric chemistry Reaction mechanisms Speciated RO(2) radicals; |
| Notes: | "MedlineGao, Yue Lu, Keding Zhang, Yuanhang eng Review Netherlands 2022/12/16 J Environ Sci (China). 2023 Jan; 123:487-499. doi: 10.1016/j.jes.2022.09.028. Epub 2022 Sep 25" |
