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题名: A new membrane inlet interface of a vacuum ultraviolet lamp ionization miniature mass spectrometer for on-line rapid measurement of volatile organic compounds in air
作者: Hou, Keyong;  Wang, Junde;  Li, Haiyang
通讯作者: 李海洋
刊名: RAPID COMMUNICATIONS IN MASS SPECTROMETRY
发表日期: 2007
DOI: 10.1002/rcm.3250
卷: 21, 期:22, 页:3554-3560
收录类别: SCI
文章类型: Article
部门归属: 1
项目归属: 102
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Analytical ;  Spectroscopy
研究领域[WOS]: Chemistry ;  Spectroscopy
英文摘要: A novel membrane inlet interface coupled to a single-photon ionization (SPI) miniature time-of-flight mass spectrometer has been developed for on-line rapid measurement of volatile organic compounds (VOCs). The vacuum ultraviolet (VUV) light source for SPI was a commercial krypton discharge lamp with photon energy of 10.6 eV and photon flux of 10(10) photons/s. The experimental results showed that the sensitivity was 5 times as high as obtained with the traditional membrane inlet. The enrichment efficiency could be adjusted in the range of 10 to 20 times for different VOCs when a buffer cell was added to the inlet interface, and the memory effect was effectively eliminated. A detection limit as low as 25 parts-per-billion by volume (ppbv) for benzene has been achieved, with a linear dynamic range of three orders of magnitude. The rise times were 6 s, 10 s and 15 s for benzene, toluene and p-xylene, respectively, and the fall time was only 6 s for all of these compounds. The analytical capacity of this system was demonstrated by the on-line analysis of VOCs in single puff mainstream cigarette smoke, in which more than 50 compounds were detected in 2 s. Copyright (C) 2007 John Wiley & Sons, Ltd.
关键词[WOS]: SINGLE-PHOTON IONIZATION ;  ATMOSPHERIC-PRESSURE PHOTOIONIZATION ;  REAL-TIME ANALYSIS ;  MULTIPHOTON IONIZATION ;  CHEMICAL-IONIZATION ;  IMPACT-IONIZATION ;  CIGARETTE-SMOKE ;  EXCIMER LIGHT ;  GAS-ANALYSIS ;  WATER
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000250993100003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99775
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:
Hou, Keyong,Wang, Junde,Li, Haiyang. A new membrane inlet interface of a vacuum ultraviolet lamp ionization miniature mass spectrometer for on-line rapid measurement of volatile organic compounds in air[J]. RAPID COMMUNICATIONS IN MASS SPECTROMETRY,2007,21(22):3554-3560.
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