The potential of KONIK K2 HPLC+GC-FID system to determine FAMEs in aviation kerosene samples is presented. The isolation of the diesel fuel (hydrocarbons) from FAME compounds in aviation kerosene is achieved using NPLC-UV system with a Hypersil Si 25 cm x 0.46 mm, 10 pm column and a heptane: MTBE gradient mobile phase. The HPLC+GC-FID system is applied to the analysis of aviation fuel samples to obtain GC chromatograms for the identification of FAMEs >C8 without the presence of interferences of hydrocarbons from matrix. The HPLC+GC-FID system can be also be coupled to KONIK MS Q12 for the unequivocal identification of compounds as a good alternative for the analysis of biodiesel-petrodiesel blends with full automatization of method.
PETROLEUM FINGERPRINTING: MULTIPLE FRACTIONS OF COMPLEX SAMPLES.