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题名: Development of a Miniature High Resolution Electron Impact Ion Source Time-of-Flight Mass Spectrometer
作者: He Jian1;  Huang Ru-Jun1;  Li Gang2;  Tang Zi-Chao2;  Lin Shui-Chao3
关键词: Gas analysis mass spectrometer ;  Electron impact ion source ;  Mass resolution ;  Time-of-flight mass spectrometer
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2012-10-01
DOI: 10.3724/SP.J.1096.2012.20403
卷: 40, 期:10, 页:1616-1621
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: Since gas analysis mass spectrometers usually use quadrupole as the mass analyzer, the resolution is typically less than 300, and the same mass ions interference problem cannot be solved. This study developed a high resolution gas analysis mass spectrometer. Electron impact ion source reflection time-of-flight mass analyzer has been designed and tested. The length of vacuum chamber is only 45 cm. Mass resolution of 3,000 (Full width at half maximum, FWHM) has been achieved at m/z 28, as a result, CO and N-2 can be separated at the half peak height. The best resolution of instrument can reach 5000 (FWHM) at m/z 69. At the condition of direct ambient air sampling, Xe-136 (7.8 mu g/m(3)) and Kr-80 (2.8 mu g/m(3)) can be detected. The dynamic range is up to 106 with fast ADC acquiring system. This instrument can be used as a high-end gas mass spectrometer and applied to on-line gas analysis for process monitoring, environmental organic volatile compounds research, thermal analysis mass spectrometry and catalytic reaction monitoring.
关键词[WOS]: VOLATILE ORGANIC-COMPOUNDS
语种: 英语
WOS记录号: WOS:000313827100019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142971
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.Xiamen Univ, Inst Phys & Mech & Elect Engn, Lab Anal Instrument, Xiamen 361005, Peoples R China
2.Xiamen Univ, Inst Chem & Engineer, Xiamen 361005, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
He Jian,Huang Ru-Jun,Li Gang,et al. Development of a Miniature High Resolution Electron Impact Ion Source Time-of-Flight Mass Spectrometer[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2012,40(10):1616-1621.
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