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Development and Application of A Membrane Inlet-Single Photon Ionization-Mass Spectrometer for On- line Analysis Volatile Organic Compounds in Water
Cui Hua-Peng1,2; Hou Ke-Yong1; Wu Qing-Hao1,2; Hua Lei1,2; Chen Ping1,2; Ju Bang-Yu1; Li Lin1; Wang Zhen-Xin1; Li Jing-Hua1; Li Hai-Yang1
关键词Membrane Inlet Single Photon Ionization Time Of Flight-mass Spectrometer Volatile Organic Compounds On-line Analysis
刊名CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2010-05-01
DOI10.3724/SP.J.1096.2010.00760
38期:5页:760-764
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
关键词[WOS]ELECTROSPRAY-IONIZATION ; AMBIENT CONDITIONS ; TRACE ORGANICS ; AIR
英文摘要A single photon ionization time of flight mass spectrometer with membrane inlet has been described and applied for on-line measuring volatile organic compounds (VOCs) in water. Automatic sampling, enrichment and measurement of VOCs were achieved by using a polyolimethyl siloxane (PDMS) membrane with a thickness of 50 mu m, a peristaltic pump and electric switch valve. There is almost no memory effect in the membrane inlet system. Single photon ionization processes were accomplished with photons of 10.6 eV emitted from a commercial low pressure discharge krypton lamp, and almost no free fragment was found in mass spectrum. Thus, it can be used for chemical compounds identification according to their molecular weight. The response times for benzene, toluene, xylene and chlorobenzene were all shorter than 100 s. The detection limit of benzene is 3 x 10(-9) (volume fraction), and an excellent linear response was observed in the range of 10 x 10(-9) (V/V) to 1 x 10(-6) (WV). The instrument was tested to analyze VOCs in the sewerage from a chemical plant, and more than twenty compounds of VOCs with concentration in 10 x 10(-9) (V/V) level were observed in 200 s. The results indicate that the single photon time-of-flight mass spectrometer with membrane inlet has a great application potential for on-line analyzing VOCs in water.
语种英语
WOS记录号WOS:000278208600031
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141819
专题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, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China
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Cui Hua-Peng,Hou Ke-Yong,Wu Qing-Hao,et al. Development and Application of A Membrane Inlet-Single Photon Ionization-Mass Spectrometer for On- line Analysis Volatile Organic Compounds in Water[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2010,38(5):760-764.
APA Cui Hua-Peng.,Hou Ke-Yong.,Wu Qing-Hao.,Hua Lei.,Chen Ping.,...&Li Hai-Yang.(2010).Development and Application of A Membrane Inlet-Single Photon Ionization-Mass Spectrometer for On- line Analysis Volatile Organic Compounds in Water.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,38(5),760-764.
MLA Cui Hua-Peng,et al."Development and Application of A Membrane Inlet-Single Photon Ionization-Mass Spectrometer for On- line Analysis Volatile Organic Compounds in Water".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 38.5(2010):760-764.
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