Cathodic electrochemical detection of sonochemical radical products.
This paper reports on an electrochemical technique for the detection of oxidizing radical species, produced as the result of cavitation induced by ultrasound. A study of two example reactions is reported: the Weissler reaction and the Fricke reaction. In both cases, redox-active materials trap oxidative radicals. Electrochemical detection within a flow cell system is then used to sense redox-active products of the reactions between a chosen trapping agent and radicals produced within an ultrasonically irradiated aqueous solution. A demonstration of the sensitivity of electrochemical detection of radical products is presented. An equivalent dose of the ultrasonic reactor is reported.
Birkin
Peter R
PR
Department of Chemistry and Institute of Sound and Vibration Research, University of Southampton, UK.
Power
John F
JF
Leighton
Timothy G
TG
Vinçotte
Aurore M L
AM