High resolution capillary gas chromatography of aromatic compounds in multicomponent hydrocarbon mixtures

Abstract

The scope of the principal techniques employed for the analysis of hydrocarbon mixtures is discussed, with emphasis on the analysis of one and two ring aromatic compounds by single column capillary gas chromatography. The paper considers both the column and the selection of the temperature regime (isothermal and temperature programmed). Much space is devoted to the characterization of the compounds by means of retention data.

Discriminating alkylbenzene isomers with tandem mass spectrometry using a dielectric barrier discharge ionization source

“…For example, meta ‐ and para ‐dimethylbenzene cannot be separated, and their EI spectra are indistinguishable 4,5 . It is possible to distinguish these with time‐consuming two‐dimensional separation methods like GC × GC 6,7 or using expensive specialized ionization methods, like femtosecond laser ionization 8 . Complimentary analytical techniques like infrared (IR) or Raman spectroscopy can differentiate and even quantify isomers 9–12 .…”