Abstract
Laser-induced fluorescence spectromety is shown to be a viable technique for quantifying polynuclear aromatic hydrocarbons (PAH) in the vapor phase. Mixtures of anthracene, fluoranthene, and phenanthrene were analyzed in a vapor cell at temperatures ranging from 50° to 90°C. The individual concentrations of PAH's in these mixtures were calculated by a least-squares matrix technique and were accurate to within 3–5% at levels of about 5 × 10 12−3 × 10 15 molecules cm −3.
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