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题名: Characterization and Applications of Combined Single Photon Ionization and Photoelectron Ionization Source
作者: Wu Qing-Hao1, 2;  Hua Lei1, 2;  Hou Ke-Yong1;  Cui Hun-Peng1, 2;  Chen Ping1, 2;  Zhao Wu-Duo1, 2;  Wang Wei-Guo1;  Li Jing-Hua1;  Li Hai-Yang1
关键词: Combined ion source ;  Single photon ionization ;  Photoelectron ionization ;  Online monitoring mass spectrometry
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2011-10-01
DOI: 10.3724/SP.J.1096.2011.01465
卷: 39, 期:10, 页:1465-1469
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: The characters and applications of combined single photon ionization (SPI) and photoelectron ionization (PEI) source were introduced. The ion source can generate dominated molecular ions in SPI mode and fragments ions same as standard El spectrum in PEI mode. The switch time between the two modes was several microseconds. The limit of detection in SPl mode was reduced by increasing the optical path in the ion source. Achieved detection limits were 0. 05 mL/m(3) and 20 mL/m(3) for benzene in SPI mode and SO(2) in PEI mode with accumulating time of 4 s respectively. Products in the process for catalytic dehydrogenation of alkanes were monitored in SPI mode. In addition, the samples of SF(6) were analyzed in PEI mode with low energy electrons and the impurities were identified.
关键词[WOS]: FLIGHT MASS-SPECTROMETER ;  ELECTRON-IMPACT IONIZATION ;  VOLATILE ORGANIC-COMPOUNDS ;  LIGHT-SOURCE ;  ONLINE ;  GAS ;  LAMP
语种: 英语
WOS记录号: WOS:000298456000002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142657
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Wu Qing-Hao,Hua Lei,Hou Ke-Yong,et al. Characterization and Applications of Combined Single Photon Ionization and Photoelectron Ionization Source[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2011,39(10):1465-1469.
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