Liquid chromatographic separation of aromatic hydrocarbons with chemically bonded (2,4-dinitroanilinopropyl) silica

Journal Article · Tue Jun 01 04:00:00 EDT 1982 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00244a013· OSTI ID:7119623

Grizzle, P L; Thomson, J S

A detailed comparison of alumina and chemically bonded silica-R(NH/sub 2/)/sub 2/ and (2,4-dinitroanilinopropyl)silica (DNAP-silica) for the compound-class (ring-numbered) high-performance liquid chromatographic separation of aromatic hydrocarbons was made with 86 model compounds either expected or known to be present in petroleums, coal liquids, or shale oils. Model compounds ranged from one-ring aromatic hydrocarbons to highly condensed polyaromatic hydrocarbons containing six aromatic rings. The importance of substituent and structure effects on separations was determined by varying the degree of alkyl and naphthenic substitution on the basic ring structures. Determination of the best system was based upon the relative retention strengths, grouping tendencies, and the observed structure and substituent effects. The silica-DNAP and alumina were determined to be more sensitive to molecular structure but less sensitive to substituent effects than the silica-R(NH/sub 2/)/sub 2/. The retention characteristics of all three systems are strongly dependent upon steric effects. On the basis of retention strengths and grouping tendencies, the DNAP-silica is considered superior to alumina and silica-R(NH/sub 2/)/sub 2/.

• Research Organization: Bartlesville Energy Technology Center, OK
• OSTI ID: 7119623
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 54:7; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

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02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
04 OIL SHALES AND TAR SANDS
040500 -- Oil Shales & Tar Sands-- Properties & Composition
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400201 -- Chemical & Physicochemical Properties
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ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AMINES
AROMATICS
CHALCOGENIDES
CHROMATOGRAPHY
COAL LIQUIDS
COMPARATIVE EVALUATIONS
DATA
DATA ANALYSIS
EFFICIENCY
ENERGY SOURCES
EXPERIMENTAL DATA
FLUIDS
FOSSIL FUELS
FUELS
HEXANE
HYDROCARBONS
INFORMATION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MASS RESOLUTION
MINERAL OILS
MINERALS
MOLECULAR STRUCTURE
NUMERICAL DATA
OILS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OTHER ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
POLYCYCLIC AROMATIC HYDROCARBONS
RESOLUTION
RETENTION
SEPARATION PROCESSES
SHALE OIL
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOLVENTS
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TIME DEPENDENCE