Visible Light Photoelectrochemical Sensor for Dopamine: Determination Using Iron Vanadate Modified Electrode.

ABSTRACT: This study reports a facile approach for constructing low-cost and remarkable electroactivity iron vanadate (Fe-V-O) semiconductor material to be used as a photoelectrochemical sensor for dopamine detection. The structure and morphology of the iron vanadate obtained by the Successive Ionic Adsorption and Reaction process were critically characterized, and the photoelectrochemical characterization showed a high photoelectroactivity of the photoanode in visible light irradiation. Under best conditions, dopamine was detected by chronoamperometry at +0.35 V vs. Ag/AgCl, achieving two linear response ranges (between 1.21 and 30.32 μmol L^-1, and between 30.32 and 72.77 μmol L^-1). The limits of detection and quantification were 0.34 and 1.12 μmol L^-1, respectively

SUBMITTER: Camargo LP 

PROVIDER: S-EPMC9572152 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature