SEDL / STP / STP1019-EB / STP18672S

Hydrocarbon-Type Analysis of Jet Fuel with Gas Chromatography/Mass Spectrometry

Gehron, MJ
Research assistant and associate professor, University of FloridaPratt and Whitney, GainesvilleWest Palm Beach, FLFL

Yost, RA
Research assistant and associate professor, University of FloridaPratt and Whitney, GainesvilleWest Palm Beach, FLFL

Pages: 14    Published: Jan 1989

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Abstract

A gas chromatography/mass spectrometry hydrocarbon-type analysis (GC/MS/HTA) method has been developed for the analysis of jet fuels. The method employs a short-column (3 m by 0.25 mm inside diameter by 1.0 μm thick film) DB-5 capillary for sample introduction into the mass spectrometer. The calculational aspects of the technique are based on the current ASTM Test Method for Hydrocarbon Types in Low Olefinic Gas-oline by Mass Spectrometry (D 2789-86) inverse calibration matrices. An evaluation of component discrimination with GC introduction was performed as a function of injection port temperatures and injection methods. The analytical figures of merit such as sensitivity and limit of detection were determined. Comparisons between the GC/MS/HTA and ASTM D 2789-86 results of several test fuels were made. Additionally, several synthetically prepared fuels were analyzed by the GC/MS/HTA method in order to evaluate the accuracy of the method.