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RECORD NUMBER: 18 OF 43

OLS Field Name OLS Field Data
Main Title Fluorescence Detection and Identification of Nitro Derivatives of Polynuclear Aromatic Hydrocarbons by On-Column Catalytic Reduction to Aromatic Amines.
Author Tejada, S. B. ; Zweidinger, R. B. ; Sigsby, J. E. ;
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1986
Report Number EPA/600/J-86/120;
Stock Number PB86-244308
Additional Subjects Aromatic polycyclic compounds ; Chromatographic analysis ; Nitrogen organic compounds ; Chemical analysis ; Catalysts ; Reprints ; Fluorescence spectroscopy
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB86-244308 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 10p
Abstract
Nitro-PAHs at trace level concentrations were reduced on-column to corresponding amino PAHs with a platinum/rhodium catalyst in a methanol-water reverse-phase HPLC system. The technique provides a convenient and sensitive method for detecting nitro-PAHs by fluorescence measurements of the corresponding amines. The technique has been incorporated in a simple automated system that eliminates sample cleanup in the determination of selected nitro-PAHs in complex matrices. Detection limit for 1-nitro pyrene is better than 10 pg on-column. Fluorescence spectra of 19 amino PAHs were measured. The catalyst does not change the chemical integrity of the PAHs but induces unknown chemical reactions on polar oxygenated species. The catalyst enhances the intensity of fluorescence emissions of most PAHs by removing quenching effects of dissolved oxygen. The pyrene emission signal is increased eightfold.