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题名: Acetone-Enhanced Negative Vacuum Ultraviolet Photoionization Mass Spectrometry for Rapid Detection of Explosives
作者: Dou Jian1;  Hua Lei2;  Hou Ke-Yong2;  Jiang Lei1;  Cheng Sha-Sha2, 3;  Qi Guo-Chen1;  Li Qing-Yun1;  Tian Di1;  Li Hai-Yang1
关键词: Acetone-enhanced ;  Negative photoionization ;  Explosives ;  Time-of-flight mass spectrometry ;  Vacuum ultraviolet lamp
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2014-07-01
卷: 42, 期:7, 页:1017-1021
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: In this article, an acetone. enhanced negative photoionization (AENP) source based on a 10. 6 eV vacuum ultraviolet (VUV) lamp was developed and coupled to a home. made time. of. flight mass spectrometer for rapid detection of trace explosives. In the AENP source, acetone molecules absorbed 10. 6 eV photons and were ionized by single photon ionization to emit photoelectrons. The photoelectrons reacted with O-2, CO2, etc. in the atmosphere to produce mainly CO3- negative reactant ions. With this ionization source, common explosives, N-nitrobiz(2-hyolorolroxy ethyl)-amine dinitrate (DINA), Tetryl, trinitrotoluene (TNT) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), could be detected sensitively, and the limit of detection of 2 pg (TNT) with a linear range of 3 orders of magnitude was achieved. The simple structure, high sensitivity characteristics make the AENP source as a promising ionization source for mass spectrometry.
关键词[WOS]: VOLATILE ORGANIC-COMPOUNDS ;  ION MOBILITY SPECTROMETRY ;  IONIZATION ;  CHROMATOGRAPHY ;  WATER
语种: 英语
WOS记录号: WOS:000346727000011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145551
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.Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130026, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Dou Jian,Hua Lei,Hou Ke-Yong,et al. Acetone-Enhanced Negative Vacuum Ultraviolet Photoionization Mass Spectrometry for Rapid Detection of Explosives[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2014,42(7):1017-1021.
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