title: Rate-limiting steps of tyrosinase-modified electrodes for the detection of catechol.
abstract: The response currents obtained for tyrosinase-modified Teflon/graphite, carbon paste, and solid graphite electrodes in the presence of catechol are analyzed primarily using rotating disk electrode experiments. The rate-limiting steps, such as the electrochemical reduction of o-quinones and the enzymatic reduction of oxygen as well as the enzymatic oxidation of catechol, are theoretically considered and experimentally demonstrated for the different electrode configurations.
authors: Department of Analytical Chemistry, University of Lund, Box 124, S-221 00 Lund, Sweden, Department of Analytical Chemistry, Faculty of Pharmacy, University of Alcalá de Henares, 28 871 Alcalá de Henares, Madrid, Spain, and Enzyme Chemistry Laboratory, Institute of Biochemistry, Mokslininku 12, 2600 Vilnius, Lithuania.
authors: E
authors: E
authors: Burestedt
authors: A
authors: A
authors: Narvaez
authors: T
authors: T
authors: Ruzgas
authors: L
authors: L
authors: Gorton
authors: J
authors: J
authors: Emnéus
authors: E
authors: E
authors: Domínguez
authors: G
authors: G
authors: Marko-Varga