The ECL behavior of the luminol/H2O2 and luminol/O-2 systems was evaluated at Pt electrode by using different electroanalytical techniques such as chronoamperometry, cyclic and rotating disk electrode (RDE) voltammetry. Diffusive and kinetic parameters such as the diffusion coefficient of luminol, D, the number of exchanged electrons, n, and the apparent heterogeneous rate constant, k(ap), were determined in the maximum light emission conditions achieved at pH 11, at an electrode potential of 750 mV vs. SCE. The experimental order of reaction were determined from the relation between the reactant concentrations and the emitted light intensity.
Kinetic considerations on the electrogenerated luminescence of luminol at platinum electrode in the presence of hydrogen peroxide and oxygen / P., Pastore; G., Favaro; A., Gallina; Antiochia, Riccarda. - In: ANNALI DI CHIMICA. - ISSN 0003-4592. - STAMPA. - 92:3(2002), pp. 271-280.
Kinetic considerations on the electrogenerated luminescence of luminol at platinum electrode in the presence of hydrogen peroxide and oxygen.
ANTIOCHIA, RICCARDA
2002
Abstract
The ECL behavior of the luminol/H2O2 and luminol/O-2 systems was evaluated at Pt electrode by using different electroanalytical techniques such as chronoamperometry, cyclic and rotating disk electrode (RDE) voltammetry. Diffusive and kinetic parameters such as the diffusion coefficient of luminol, D, the number of exchanged electrons, n, and the apparent heterogeneous rate constant, k(ap), were determined in the maximum light emission conditions achieved at pH 11, at an electrode potential of 750 mV vs. SCE. The experimental order of reaction were determined from the relation between the reactant concentrations and the emitted light intensity.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
