Identification of polycyclic aromatic hydrocarbons in combustion effluents by gas chromatography-infrared spectrometry
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Series / Report no.
Open Access
Type
Report
Language
en
Date
1996-11-30
Research Projects
Organizational Units
Journal Issue
Title
Identification of polycyclic aromatic hydrocarbons
in combustion effluents by gas chromatography-infrared
spectrometry
Translated Title
Identificatie van polycyclische aromatische
koolwaterstoffen in verbrandingsgassen door gaschromatografie met
infraroodspectrometrie
Published in
Abstract
Orienterend onderzoek is uitgevoerd naar de
mogelijkheden van gaschromatografie (GC) met infraroodspectrometrische (IR)
detectie voor de structuuropheldering van polycyclische aromatische
koolwaterstoffen (PAK), ethynyl-gesubstitueerde PAK en 'cyclopenta fused'
PAK. Experimenten zijn uitgevoerd aan standaardverbindingen en aan de
pyrolyseproducten van in situ gevormde (T 600-1100oC)
ethynyl-gesubstitueerde PAK als modellen voor de nabootsing van
verbrandingsprocessen. De resultaten zijn vergeleken met die van de
gebruikelijke analysetechniek bij de structuuranalyse van PAK,
gaschromatografie met massaspectrometrie (GC-MS). GC-IR blijkt een
waardevolle, complementaire aanvulling te zijn op GC-MS. Conclusies van de
GC-MS analyses konden worden bevestigd en in een aantal gevallen kon de
structuur van nog niet geidentificeerde componenten met behulp van de
IR-gegevens worden opgehelderd. De combinatie van GC-IR en GC-MS is een
vereiste voor de structuuropheldering van PAK-isomeren.
A pilot study has been carried out on the potentials of gas chromatography (GC) with infrared (IR) spectrometric detection for the structure elucidation of polycyclic aromatic hydrocarbons (PAHs), ethynyl-substituted PAH's and cyclopenta-fused PAHs (CP-PAHs). Experiments have been carried out on standard compounds and on products generated by in situ pyrolysis (T 600-1100oC) of ethynyl-substituted PAHs as models for mimicking combustion processes. The results have been compared with the data obtained by GC with mass spectrometry (GC-MS), the current method for the analysis of PAHs in complex combustion effluents. GC-IR proves to be a valuable and complementary addition to GC-MS. Conclusions from GC-MS have been confirmed and, additionally, the molecular structures of previously unidentified constituents have been elucidated. The combination of GC-IR and GC-MS is a prerequisite for unequivocal structural elucidation of isomeric PAHs.
A pilot study has been carried out on the potentials of gas chromatography (GC) with infrared (IR) spectrometric detection for the structure elucidation of polycyclic aromatic hydrocarbons (PAHs), ethynyl-substituted PAH's and cyclopenta-fused PAHs (CP-PAHs). Experiments have been carried out on standard compounds and on products generated by in situ pyrolysis (T 600-1100oC) of ethynyl-substituted PAHs as models for mimicking combustion processes. The results have been compared with the data obtained by GC with mass spectrometry (GC-MS), the current method for the analysis of PAHs in complex combustion effluents. GC-IR proves to be a valuable and complementary addition to GC-MS. Conclusions from GC-MS have been confirmed and, additionally, the molecular structures of previously unidentified constituents have been elucidated. The combination of GC-IR and GC-MS is a prerequisite for unequivocal structural elucidation of isomeric PAHs.
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