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On-line fractionation and identification of diesel fuel polycyclic aromatic compounds by two-dimensional microbore high-performance liquid chromatography/capillary gas chromatography

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac00154a003· OSTI ID:5382096
Automated high-performance aminosilane silica packed microbore liquid chromatographic (HPLC) fractionation is coupled on-line to capillary gas chromatography (GC). Under normal-phase HPLC conditions, aliphatic compounds are unretained while one- to four-ring polycyclic aromatic hydrocarbons elute according to ring size and are detected by ultraviolet absorbance. HPLC fractions of 100 ..mu..L are transferred directly into the GC through a 10-port valve interface and a 25-m retention gap. Individual components are resolved by temperature-programmed capillar GC with flame-ionization detection. A two-dimensional model of HPLC/GC retention indexes is used to identify two- to four-ring polycyclic aromatic compounds in diesel fuel.
Research Organization:
Univ. of Leeds, England
OSTI ID:
5382096
Journal Information:
Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 60:3; ISSN ANCHA
Country of Publication:
United States
Language:
English