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Online analysis of gas-phase radical reactions using vacuum ultraviolet lamp photoionization and time-of-flight mass spectrometry

文献类型：期刊论文

作者Wen, Zuoying3,4; Tang, Xiaofeng4; Fittschen, Christa1; Zhang, Cuihong3,4; Wang, Tao4; Wang, Chengcheng3,4; Gu, Xuejun4; Zhang, Weijun2,4
刊名REVIEW OF SCIENTIFIC INSTRUMENTS
出版日期2020-04-01
卷号91
ISSN号0034-6748
DOI10.1063/1.5135387
通讯作者Tang, Xiaofeng(tangxf@aiofm.ac.cn) ; Zhang, Weijun(wjzhang@aiofm.ac.cn)
英文摘要A home-made vacuum ultraviolet photoionization time-of-flight mass spectrometer has been developed and coupled to an atmospheric simulation chamber operated at atmospheric pressure and to a fast flow tube at low pressure (1-10 Torr). Gas sampling from the simulation chamber is realized directly via a capillary effusive beam, and sampling from the flow tube is via a continuous molecular beam inlet. Both devices are connected simultaneously to the ionization chamber of the mass spectrometer and can be switched in-between within minutes to study gas-phase radical reactions of atmospheric interest in a large range of reaction conditions and reaction times (from milliseconds in the flow tube to hours in the simulation chamber). A cage-shaped photoionization source combined with a commercial 10.6 eV krypton lamp has been developed to provide a high ion collection efficiency along the long light path in the cage. This way, a multiplexed detection with high sensitivity down to the sub-parts per billion volume concentration range, e.g., a limit of detection of 0.3 ppbv with an accumulation time of 60 s for benzene and 1.3 ppbv for the methyl radical, is obtained. The performance and suitability of the setup are illustrated by the study of the chlorine-initiated oxidation reaction of toluene in the atmospheric simulation chamber and in the fast flow tube. Stable products and reactive intermediates have been well-determined and their reaction dynamics are discussed.
WOS关键词SINGLE-PHOTON IONIZATION ; CROSS-SECTIONS ; KINETICS ; SYNCHROTRON ; CL ; SPECTROSCOPY ; CHEMISTRY ; OXIDATION ; PRODUCTS ; BENZYL
资助项目National Natural Science Foundation of China (NSFC)[21773249] ; National Natural Science Foundation of China (NSFC)[91961123] ; National Natural Science Foundation of China (NSFC)[91644109] ; National Natural Science Foundation of China (NSFC)[91544228] ; National Key R&D Program of China[2016YFC0200300] ; International Partnership Program of Chinese Academy of Sciences[116134KYSB20170048] ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI)[2018VMA0055] ; Xu Guangqi program[43270ZD]
WOS研究方向Instruments & Instrumentation ; Physics
语种英语
出版者AMER INST PHYSICS
WOS记录号WOS:000529266400001
资助机构National Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; International Partnership Program of Chinese Academy of Sciences ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; Xu Guangqi program
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/103457]  
专题中国科学院合肥物质科学研究院
通讯作者Tang, Xiaofeng; Zhang, Weijun
作者单位1.Univ Lille, CNRS, UMR 8522, PC2A Physicochim Proc Combust & Atmosphere, F-59000 Lille, France
2.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Anhui, Peoples R China
3.Univ Sci & Technol China, Grad Sch, Hefei 230026, Anhui, Peoples R China
4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Lab Atmospher Physicochem, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Wen, Zuoying,Tang, Xiaofeng,Fittschen, Christa,et al. Online analysis of gas-phase radical reactions using vacuum ultraviolet lamp photoionization and time-of-flight mass spectrometry[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2020,91.
APA Wen, Zuoying.,Tang, Xiaofeng.,Fittschen, Christa.,Zhang, Cuihong.,Wang, Tao.,...&Zhang, Weijun.(2020).Online analysis of gas-phase radical reactions using vacuum ultraviolet lamp photoionization and time-of-flight mass spectrometry.REVIEW OF SCIENTIFIC INSTRUMENTS,91.
MLA Wen, Zuoying,et al."Online analysis of gas-phase radical reactions using vacuum ultraviolet lamp photoionization and time-of-flight mass spectrometry".REVIEW OF SCIENTIFIC INSTRUMENTS 91(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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