Accession Number : ADA191499

Title :   Selective Detection in Gas Chromatography.

Descriptive Note : Final rept. Jan-Mar 85,

Corporate Author : AIR FORCE WRIGHT AERONAUTICAL LABS WRIGHT-PATTERSON AFB OH

Personal Author(s) : Pitzer, Edward W

PDF Url : ADA191499

Report Date : Dec 1987

Pagination or Media Count : 25

Abstract : High-resolution gas chromatography (HRGC) is capable of separating a very complex hydrocarbon liquid such as jet propulsion fuel into nearly all of its individual components. However, there is no guarantee that what appears to be a single chromatographic peak is in fact a single fuel component. The method of detecting these HRGC eluents is very often the flame ionization detector (FID), a very sensitive and universally responding hydrocarbon detector. Neither the separating power of HRGC, or the sensitivity of the FID, however, lend information as to the identity of the eluting component. The need to specifically identify HRGC eluents, especially those containing heteroatoms such as nitrogen, sulfur, phosphorus, oxygen, halogens and some materials has been well-documented. The purpose of this report is to review the progress in the area of selective gas chromatographic detectors and to recommend selective detectors for use in the HRGC analysis of jet propulsion fuels. This report will present 24 different selective gas chromatographic detectors. These detectors, while not all directly applicable to the HRGC analysis of jet propulsion fuel, all show the concept of selective detection in gas chromatography. The applicability of these detectors to jet propulsion fuel analyses is determined from a comparison of their complexity and cost versus their effectiveness as high-resolution gas chromatographic detectors. Keywords: Ionization detectors, Fourier, Electron capture, Photoionization, Catalytic ionization, Infrared, Atomic absorption spectrometry, Ultraviolet.

Descriptors :   *GAS CHROMATOGRAPHY, ABSORPTION, ATOMIC PROPERTIES, ATOMIC SPECTROSCOPY, CATALYTIC CRACKING, CHROMATOGRAPHS, COSTS, ELECTRON CAPTURE, FLAMES, HALOGENS, HYDROCARBONS, IONIZATION, JET ENGINE FUELS, JET PROPULSION, NITROGEN, OXYGEN, PEAK VALUES, PHOSPHORUS, PHOTOIONIZATION, SULFUR, SELECTION, FOURIER TRANSFORMATION, INFRARED SPECTROSCOPY, ATOMIC SPECTROSCOPY, EMISSION SPECTROSCOPY

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE