Laser-induced fluorescence spectroscopy for phenol and intermediate products in aqueous solutions degraded by pulsed corona discharges above water

Laser-induced fluorescence (LIF) spectroscopy is introduced as an in situ d iagnostic for phenol and intermediate products in an aqueous solution degra ded by corona discharges. The complications that are inherent in applying L IF as a diagnostic for aqueous solutions are experimentally examined. The L IF intensities of phenol and the intermediate products are measured as a fu nction of time. The absolute phenol concentration is determined. me confirm the applicability of LIF spectroscopy far monitoring phenol concentration during degradation. (C) 2001 Optical Society of America OCIS codes: 300.253 0, 140.0140, 170.6280, 010.7340.