Class separation of aromatic compounds in rock extracts and fossil fuels by liquid chromatography
A method for semipreparative liquid chromatographic separation of aromatic ring classes in crude oils and the organic extracts of rock and coal samples was developed. Partially deactivated microparticulate alumina was used as the stationary phase. Reproducible retentions could be achieved with a moisture-control system. Application of a stepwise gradient of dichloromethane in n-hexane resulted in four aromatic subfractions, which were characterized by using fused silica capillary column gas chromatography either with dual flame ionization and flame photometric detection or in combination with mass spectrometry. The complete separating time, including reconditioning of the column, was 40 minutes.
- Research Organization:
- Institute for Petroleum and Organic Geochemistry, Juelich, West Germany
- OSTI ID:
- 5688289
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 56:13; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
400105 -- Separation Procedures
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
ENERGY SOURCES
EXPERIMENTAL DATA
FLAME PHOTOMETRY
FOSSIL FUELS
FUELS
GAS CHROMATOGRAPHY
HEXANE
HYDROCARBONS
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
METHANE
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOMETRY
QUANTITATIVE CHEMICAL ANALYSIS
ROCKS
SEPARATION PROCESSES
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS