title: Analysis of polynuclear aromatic hydrocarbon mixtures in various environments by time-resolved fluorescence spectroscopy.
abstract: Time-resolved molecular fluorescence spectroscopy is presented as a sensitive and selective method for the characterization of mixtures of polynuclear aromatic hydrocarbons in the collision-free vapor phase at elevated temperature, in the condensed phase at room temperature, and at 77 K in a Shpol'skii matrix. This technique is applicable for all three conditions and the quantitative analysis for each component in mixtures has a fairly small error. Also the advantages and disadvantages are discussed for these different environments. Anthracene, pyrone and fluoranthene are used as model compounds.
authors.affiliation: Department of Chemistry, University of Rhode Island, Kingston, RI 02881, USA.
authors.forename: K M
authors.initials: KM
authors.lastname: Bark
authors.forename: R K
authors.initials: RK
authors.lastname: Forcé