MASS SPECTROMETRY, GAS CHROMATOGRAPHY, AND COUPLING GC/MS AS COMPLEMENTARY TECHNIQUES FOR FLAME STRUCTURE ANALYSIS
| Autor: | Jacques Vandooren, Véronique Dias, P.J. Van Tiggelen, Cédric Renard |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Premixed flame
Argon Chromatography Chemistry General Chemical Engineering Flame structure Analytical chemistry General Physics and Astronomy Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Mass spectrometry Propyne Mole fraction chemistry.chemical_compound Fuel Technology Gas chromatography Gas chromatography–mass spectrometry |
| Zdroj: | Combustion Science and Technology. 176:1419-1435 |
| ISSN: | 1563-521X 0010-2202 |
| DOI: | 10.1080/00102200490473657 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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