AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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Authors: DELIA M. GLIGOR, LIANA MUREŞAN, IONEL CĂTĂLIN POPESCU, CASTELIA CRISTEA, GABRIELA CORMOS.
Bis-(10-ethylphenothiazinyl)-phenylmethane was obtained by the condensation of 10-ethyl-phenothiazine with benzaldehyde in the presence of acid catalysts. The electrochemical behavior of bis-(10-ethylphenothiazinyl)-phenylmethane adsorbed on spectrographic graphite has been investigated. Cyclic voltammetric measurements performed in aqueous buffer solutions at different potential scan rates pointed out to a quasi-reversible, surface-confined redox process, with a negative formal standard potential of -55 mV vs. SCE (10 mV s-1). The voltammetric response involves the transfer of 1e-, with a heterogeneous rate constant of 18.9 s-1 (pH 7). The modified electrodes showed a good electrochemical stability.
