The effect of degree of aromaticity and alkyl substitution of polyaromatic hydrocarbons on instrumental response factors
Average gas chromatographic (flame ionization detection) and ultraviolet spectroscopic response factors and high resolution, low voltage, electron impact, mass spectroscopic sensitivities have been obtained for polyaromatic hydrocarbon mixtures from four different fossil fuels. These mixtures were obtained from neutral-aromatic fractions by ''heart-cutting'' 1- through 5-aromatic-ring compound types using charge-transfer liquid chromatography. Liquid chromatographic separation into fractions of a given number of condensed aromatic rings was verified independently using synchronized scanning fluorimetry. Gas chromatographic relative response factors for all fuels reached a minimum at three aromatic rings, and then increased again. Ultraviolet molar absorptivities of each ring number group at 254 nm were found to be similar for different boiling ranges within each fuel type studied, and generally agreed within a factor of two between fuel types. HR/MS sensitivities of 1- through 3-ring fractions were found to decrease for lower boiling fractions containing long alkyl chains, and increase as both boiling point and ring number of the fractions increased. 34 refs., 20 figs., 13 tabs.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 5721782
- Report Number(s):
- NIPER-200; ON: DE89000761
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization of North Sea petroleum fractions: Aromatic ring class distribution
Automated liquid chromatographic compound class group-type separation of crude oils and bitumens using chemically bonded aminosilane
Related Subjects
010600* -- Coal
Lignite
& Peat-- Properties & Composition
02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ACCURACY
ALKYLATED AROMATICS
AROMATICS
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DISPERSIONS
MASS SPECTRA
MEASURING INSTRUMENTS
MIXTURES
ORGANIC COMPOUNDS
SEPARATION PROCESSES
SPECTRA
SPECTROSCOPY
STANDARDIZATION