EFFECTS OF STORAGE CONDITIONS AND GC×GC/FID PARAMETERS ON THE COMPOSITION AND FLASH POINT OF JET A AND THE IDENTIFICATION AND QUANTITATION OF ALKYLPHENOLS IN JET A USING PREP-HPLC AND GC×GC/(+)EI MS

  This dissertation focuses on the examination of the influence of sample storage conditions on the accuracy and precision of hydrocarbon composition measurements of Jet A made with GC×GC/FID and the accuracy and precision of flash point measurements of Jet A made with a Tag closed cup flash point tester. Areas of focus also include the influence of the column load value used, the S/N threshold value used, and the number of measurements made for a single sample vial on the accuracy and precision of the GC×GC/FID results. This dissertation also describes the development of an analytical method for the identification and quantitation of alkylphenols in Jet A (which are the most abundant heteroatom containing compounds in jet fuel) by using preparative high-performance liquid chromatography (prep-HPLC) and two-dimensional gas chromatography with electron ionization time-of-flight mass spectrometry (GC×GC/(+)EI TOF MS).