Zusammenfassung
8 Rohöle unterschiedlicher Provenienz wurden auf ihren Gehalt an polycyclischen aromatischen Kohlenwasserstoffen, deren isosteren Sauerstoff- (Furane) und Schwefelanaloga (Thiophene) sowie an Carbazolen mit Hilfe der Glas-Capillar-Gas-Chromatographie quantitativ untersucht. Am Beispiel eines Rohöls (Qatar) wurden 226 verschiedene Verbindungen entweder durch Vergleich der Retentionszeiten und Massenspektren mit denen von Referenzsubstanzen identifiziert oder, wo diese nicht vorhanden waren, massenspektrometrisch als polycyclische aromatische Verbindungen (PAC) charakterisiert. Der PAC-Gehalt (>3 Ringe) der untersuchten Öle schwankt innerhalb einer Zehnerpotenz. Der relative Gehalt an schwefelhaltigen PAC (S-PAC) ist mit dem Gesamtschwefelgehalt linear korrelierbar.
Summary
Eight crude oils of different origin were quantitatively analysed in respect to the content of polycyclic aromatic hydrocarbons, isosteric oxygen (furans) and sulphur (thiophenes) analogues, and carbazoles by means of glass-capillary gas-chromatography. From a crude oil (Qatar) 226 different compounds were either identified by comparing their retention times and mass spectra with those of reference materials, or where these are lacking characterized as polycyclic aromatic compounds (PAC) by mass spectrometry. The PAC-content (>3 rings) of these crude oils investigated ranged within one order of magnitude. The relative content of sulphur containing PAC can be correlated to the total sulphur content.
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Grimmer, G., Jacob, J. & Naujack, KW. Profile of the polycyclic aromatic compounds from crude oils. Z. Anal. Chem. 314, 29–36 (1983). https://doi.org/10.1007/BF00476507
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DOI: https://doi.org/10.1007/BF00476507