Laser-induced fluorescence (LIF) spectroscopy is introduced as an <i>in situ</i> diagnostic for phenol and intermediate products in an aqueous solution degraded by corona discharges. The complications that are inherent in applying LIF as a diagnostic for aqueous solutions are experimentally examined. The LIF intensities of phenol and the intermediate products are measured as a function of time. The absolute phenol concentration is determined. We confirm the applicability of LIF spectroscopy for monitoring phenol concentration during degradation.
© 2001 Optical Society of America
(010.7340) Atmospheric and oceanic optics : Water
(140.0140) Lasers and laser optics : Lasers and laser optics
(170.6280) Medical optics and biotechnology : Spectroscopy, fluorescence and luminescence
(300.2530) Spectroscopy : Fluorescence, laser-induced
Daiyu Hayashi, Wilfred Hoeben, Geert Dooms, Eddie van Veldhuizen, Wijnand Rutgers, and Gerrit Kroesen, "Laser-Induced Fluorescence Spectroscopy for Phenol and Intermediate Products in Aqueous Solutions Degraded by Pulsed Corona Discharges Above Water," Appl. Opt. 40, 986-993 (2001)