Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry

	Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry
	Chen, Ping 1,2; Hou, Keyong 1; Hua, Lei 1; Xie, Yuanyuan 1,2; Zhao, Wuduo 1,2; Chen, Wendong 1,2; Chen, Chuang 1; Li, Haiyang 1
刊名	analytical chemistry
	2014-02-04
卷号	86 期号:3 页码:1332-1336
通讯作者	李海洋
英文摘要	the application of vuv lamp-based single photon ionization (spi) was limited due to low photon energy and poor photon flux density. in this work, we designed a quasi-trapping chemical ionization (qt-ci) source with a commercial vuv 10.6 ev krypton lamp for time-of-flight mass spectrometry. the three electrode configuration ion source with rf voltage on the second electrode constitutes a quasi-trapping region, which has two features: accelerating the photoelectrons originated from the photoelectric effect with vuv light to trigger the chemical ionization through ion-molecule reaction and increasing the collisions between reactant ion o-2(+) and analyte molecules to enhance the efficiency of chemical ionization. compared to single spi based on vuv krypton lamp, the qt-ci ion source not only apparently improved the sensitivity (e.g., 12-118 fold enhancement were achieved for 13 molecules, including aromatic hydrocarbon, chlorinated hydrocarbon, hydrogen sulfide, etc.) but also extended the range of ionizable molecules with ionization potential (ip) higher than 10.6 ev, such as propane, dichloroethane, and trichloromethane
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, analytical
研究领域[WOS]	chemistry
关键词[WOS]	single-photon ionization ; volatile organic-compounds ; vacuum-ultraviolet lamp ; electron-impact ionization ; online gas-analysis ; photoelectron ionization ; light-source ; radiation ; setup
收录类别	SCI
语种	英语
WOS记录号	WOS:000331014800004
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/143968]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ping,Hou, Keyong,Hua, Lei,et al. Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry[J]. analytical chemistry,2014,86(3):1332-1336.
APA	Chen, Ping.,Hou, Keyong.,Hua, Lei.,Xie, Yuanyuan.,Zhao, Wuduo.,...&Li, Haiyang.(2014).Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry.analytical chemistry,86(3),1332-1336.
MLA	Chen, Ping,et al."Quasi-Trapping Chemical Ionization Source Based on a Commercial VUV Lamp for Time-of-Flight Mass Spectrometry".analytical chemistry 86.3(2014):1332-1336.