| Title: | Coupling of comprehensive two-dimensional gas chromatography with quadrupole mass spectrometry: application to the identification of atmospheric volatile organic compounds |
| Author(s): | Wang Y; Xu X; Yin L; Cheng H; Mao T; Zhang K; Lin W; Meng Z; Palasota JA; |
| Address: | "Key Laboratory for Atmospheric Chemistry, Institute of Atmospheric Composition, Chinese Academy of Meteorological Sciences, Beijing 100081, China. Key Laboratory for Atmospheric Chemistry, Institute of Atmospheric Composition, Chinese Academy of Meteorological Sciences, Beijing 100081, China. Electronic address: xuxb@cams.cma.gov.cn. Centre for Atmosphere Watch & Services, Meteorological Observation Center of CMA, Beijing 100081, China. Department of Chemistry and Physics, University of St. Thomas, Houston, TX 77006, USA" |
| DOI: | 10.1016/j.chroma.2014.08.006 |
| ISSN/ISBN: | 1873-3778 (Electronic) 0021-9673 (Linking) |
| Abstract: | "Observation data of atmospheric volatile organic compounds (VOCs) are highly needed in air quality assessment, photochemical mechanism study, and emission control policy-making, while it has been a challenge to accurately and comprehensively measure them. Comprehensive two-dimensional gas chromatography (GCxGC) is one of the advanced techniques in analysis of complex mixtures, providing a good choice for measurement of VOCs. However, the requirement for a fast detector limits the application of quadrupole mass spectrometry (qMS) in GCxGC analysis. This paper presents a method of a common qMS detector coupled with GCxGC to the identification of atmospheric VOCs. About 125 VOCs including alkanes, alkenes, aromatics, oxygenated hydrocarbons, and halocarbons were identified in the measurement of standard gas mixtures and/or urban air samples from Beijing. The results were applied to the analysis of GCxGC-FID by one to one correspondence of peaks of the equivalent compounds between the GCxGC-FID and GCxGC-qMS chromatograms, and the retention times of the identified components in GCxGC-FID in turn undertake the qualitative analysis without the further help of MS. The wrap-around phenomenon which may confuse the match of peaks was discussed in detail. The cooperation of GCxGC-FID and GCxGC-qMS which assists the identification makes the GCxGC exploration more affordable and yet practical on both qualitative and quantitative analysis. The method and the identified results can be expanded to analyze other volatiles" |
| Keywords: | Air/analysis Gas Chromatography-Mass Spectrometry/instrumentation/*methods Volatile Organic Compounds/*isolation & purification Atmosphere Comprehensive two-dimensional gas chromatography (GCxGC) Quadrupole mass spectrometry (qMS) Qualitative analysis Vol; |
| Notes: | "MedlineWang, Ying Xu, Xiaobin Yin, Liyuan Cheng, Hongbing Mao, Ting Zhang, Kangping Lin, Weili Meng, Zhaoyang Palasota, John A eng Research Support, Non-U.S. Gov't Netherlands 2014/08/26 J Chromatogr A. 2014 Sep 26; 1361:229-39. doi: 10.1016/j.chroma.2014.08.006. Epub 2014 Aug 11" |
