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题名: Electrospray/VUV Single-Photon Ionization Mass Spectrometry for the Analysis of Organic Compounds
作者: Yang, Zheng2;  Zhang, Taichang3;  Pan, Yang3;  Hong, Xin3;  Tang, Zichao1, 2;  Qi, Fei3
刊名: JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
发表日期: 2009-03-01
DOI: 10.1016/j.jasms.2008.10.026
卷: 20, 期:3, 页:430-434
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical ;  Spectroscopy
研究领域[WOS]: Chemistry ;  Spectroscopy
英文摘要: For the comprehensive analysis of organic compounds, especially thermal labile and nonpolar compounds, an electrospray/vacuum ultraviolet (VUV) single-photon ionization (ES-SPI) method was developed. The fine droplets of the sample solution from the electrospray process were directed through a quartz capillary and two skimmers to form a molecular beam into a high vacuum ionization chamber. The neutral sample molecules were softly ionized with tunable VUV light and analyzed with a reflection time-of-flight mass spectrometer (RTOF-MS). The ionization energy (IE) and appearance onsets of fragments were obtained based on the photoionization efficiency (PIE) spectrum. The isomers can also be distinguished. With this new method, clean (fragment-free) mass spectra of nonpolar compounds, such as benzene, cyclohexane, and some thermal labile solid compounds (triphenylamine, thioacetamide, and urea) have been obtained without any tedious pretreatment. The components of complex mixtures (gasoline and kerosene) can be identified. Furthermore, quantitative analysis of the components can be obtained based on photoionization cross section data. This method may be used for quantitative analysis of small biomolecules and natural products. (J Am Soc Mass Spectrom 2009, 20, 430-434) (C) 2009 Published by Elsevier Inc. on behalf of American Society for Mass Spectrometry
关键词[WOS]: SYNCHROTRON-RADIATION ;  PETROLEUM-PRODUCTS ;  CROSS-SECTIONS ;  COMPONENTS ;  MOLECULES ;  MIXTURES ;  SPECTRA ;  ONLINE ;  LIGHT ;  OIL
语种: 英语
WOS记录号: WOS:000264082200011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141265
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, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Natl Lab Mol Sci, Beijing 100080, Peoples R China
3.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China

Recommended Citation:
Yang, Zheng,Zhang, Taichang,Pan, Yang,et al. Electrospray/VUV Single-Photon Ionization Mass Spectrometry for the Analysis of Organic Compounds[J]. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY,2009,20(3):430-434.
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