Open AccessConstruction of new sensors with copper and cobalt com¬ple¬xes anchored on organofunctionalized silica and their use for electrocatalytic oxidation of reagents of biological interest
Author(s) -
Marco Antonio Gonçalves Benetti,
Denise Isadora Saores,
Giovanna Gatti Alves,
Eduardo Dias Andrade Pinto,
Angélica M. Lazarin
Publication year - 2022
Publication title -
journal of electrochemical science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.236
H-Index - 6
ISSN - 1847-9286
DOI - 10.5599/jese.1100
Subject(s) - reagent , copper , cyclic voltammetry , silica gel , metal ions in aqueous solution , graphite , voltammetry , cobalt , carbon paste electrode , inorganic chemistry , chemistry , metal , electrochemistry , transition metal , electrode , organic chemistry , catalysis
This work describes the development and application of chemically modified carbon paste electrode (CMCPE) with metal ion complexes of transition metals Co(II) and Cu(II) anchored on functionalized silica (SF). The prepared CMCPE was used for the determination of dopamine (DA) in the presence of pyridoxine (VB6) in commercially available pharmaceutical formulation, without any treatment of samples. The CMCPEs were built by incorporating graphite and functionalized silica and complexes of metal ions (Cu and Co) anchored by nitrogen groups on the silica surface. The electrochemical analysis was performed by cyclic voltammetry, while a drug analyzed in the present study was Revivan ampoules (DA determination).