A Vacuum Ultraviolet Photoionization Time-of-Flight Mass Spectrometer for Investigation of Free Radical Reaction
文献类型：期刊论文
| 作者 | Wang Tao1,2,3 ; Tang Xiao-Feng1; Wen Zuo-Ying1; Zhang Cui-Hong1; Zhang Wei-Jun1,4
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| 刊名 | CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2020 |
| 卷号 | 48 |
| 关键词 | Time-of-flight mass spectrometer Vacuum ultraviolet photoionization Flow tube Free radical |
| ISSN号 | 0253-3820 |
| DOI | 10.1016/S1872-2040(19)61208-9 |
| 通讯作者 | Tang Xiao-Feng(tangxf@aiofm.ac.cn) |
| 英文摘要 | A home-made vacuum ultraviolet (VUV) photoionization linear time-of-flight mass spectrometer (VUVPI-LTOFMS) was utilized to study atmospheric radical reactions. A commercial krypton discharge lamp with photon energy at 10.6 eV was installed as VUV light source and combined with a cage-shape photoionization source to efficiently extract and focus ions. A limit of detection (LOD) of 0.03 mu g/L (S/N = 3) for benzene was achieved. A microwave discharge fast flow tube was employed as chemical reactor to produce free radicals and initiate their atmospheric reactions. The concentration of methyl radical was measured with its self-reaction kinetics and the available rate constant. As a representative example, the reaction of the methyl radical with nitric oxide was studied. Both the stable species and radicals involved in the reaction were probed, and the reaction rate constant at room temperature and pressure of 300 Pa was measured to be k(CH3 + NO) = 1.2 x 10(-12) cm(3)/(molecule.s). |
| WOS关键词 | SINGLE-PHOTON IONIZATION ; KINETIC MEASUREMENTS ; GAS ; SPECTROSCOPY ; PYROLYSIS ; LAMP |
| 资助项目 | National Natural Science Foundation of China[21773249] ; National Natural Science Foundation of China[91644109] ; National Natural Science Foundation of China[91544228] ; Project of Chinese Academy of Sciences[116134KYSB20170048] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000506660300004 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China ; Project of Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/70594]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Tang Xiao-Feng |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230026, Peoples R China 2.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China 3.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 4.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Tao,Tang Xiao-Feng,Wen Zuo-Ying,et al. A Vacuum Ultraviolet Photoionization Time-of-Flight Mass Spectrometer for Investigation of Free Radical Reaction[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2020,48. |
| APA | Wang Tao,Tang Xiao-Feng,Wen Zuo-Ying,Zhang Cui-Hong,&Zhang Wei-Jun.(2020).A Vacuum Ultraviolet Photoionization Time-of-Flight Mass Spectrometer for Investigation of Free Radical Reaction.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,48. |
| MLA | Wang Tao,et al."A Vacuum Ultraviolet Photoionization Time-of-Flight Mass Spectrometer for Investigation of Free Radical Reaction".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 48(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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