Evaluation of oligomeric models of coal asphaltenes and preasphaltenes as GPC calibration standards. [Gel permeation chromatography]

Conference · Sat Dec 31 23:00:00 EST 1983

OSTI ID:5369202

Baltisberger, R J; Wagner, S E; Rao, S P; Schwan, J F; Jones, M B

Polystyrene, oligo(phenyl ethers) and/or oligo(phenyl methylenes) are suitable gel permeation chromatography (GPC) calibration standards for most derivatized solvent refined lignite (SRL) asphaltenes and preasphaltenes. More condensed aromatic oligomers (i.e., containing phenanthryl and pyrenyl moieties) may be required for accurate GPC determination of the molecular weights of SRL samples with low H/sub aru//C/ar/ (highly condensed aromatics). The SRL samples must be derivatized to block free -OH groups and prevent interaction with the GPC solvent, tetrahydrofuran. 15 references, 2 figures.

• Research Organization: North Dakota Univ., Grand Forks (USA). Dept. of Chemistry
• DOE Contract Number: FG22-81PC40810
• OSTI ID: 5369202
• Report Number(s): CONF-840415-4; ON: DE84002777
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010600* -- Coal
Lignite
& Peat-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
ASPHALTENES
ASPHALTS
BITUMENS
BROWN COAL
CALIBRATION STANDARDS
CARBONACEOUS MATERIALS
CHROMATOGRAPHY
COAL
DATA
ENERGY SOURCES
EVALUATION
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
FURANS
HETEROCYCLIC COMPOUNDS
INFORMATION
LIGNITE
MATERIALS
MOLECULAR WEIGHT
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
SEPARATION PROCESSES
SOLVENT-REFINED COAL
STANDARDS
SYNTHETIC MATERIALS
TAR
TETRAHYDROFURAN