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Mass spectrometry, gas chromatography, and coupling GC/MS as complementary techniques for flame structure analysis

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Dias, Véronique [UCL] Renard, Cédric [UCL] Van Tiggelen, Pierre [UCL] Vandooren, Jacques [UCL]

Molecular beam mass spectrometry (MBMS) and gas chromatography (GC) are complementary methods that provide a detailed description of flame structures. MBMS can measure most stable and reactive species but mass overlapping (isomers, species at same m/e), isotopic, and ionic fragmentation interferences can be solved by using GC. To improve species identification, an experimental technique coupling both mass spectrometry and GC is developed. Rich flat premixed ethylene/oxygen/argon flames (phi=2.25 and 2.50) have been investigated by both methods. After adequate calibrations, mole fraction profiles of several species measured by both techniques agree very well, but for methane, allene, propyne, and benzene, concentrations in burnt gases are somewhat larger when using GC than when using MBMS. C2H6, C2H4O, C3H6, and C3H8, which have similar masses as CH2O, CO2 or C3H8, CH2CO, and CO2, respectively, have been identified, separated, and calibrated by GC, which confirms that GC and MBMS are complementary techniques.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2004
Language Anglais
Journal information "Combustion Science and Technology" - Vol. 176, no. 9, p. 1419-1435 (2004)
Peer reviewed yes
Publisher Taylor & Francis Ltd (Abingdon)
issn 0010-2202
e-issn 1563-521X
Publication status Publié
Affiliation UCL - SC/CHIM - Département de chimie
Keywords mass spectrometry ; gas chromatography ; coupling GC/MS ; ethylene flame
Links
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Bibliographic reference Dias, Véronique ; Renard, Cédric ; Van Tiggelen, Pierre ; Vandooren, Jacques. Mass spectrometry, gas chromatography, and coupling GC/MS as complementary techniques for flame structure analysis. In: Combustion Science and Technology, Vol. 176, no. 9, p. 1419-1435 (2004)
Permanent URL http://hdl.handle.net/2078.1/40012