Fabrication of Co3O4 particles‐modified multi‐walled carbon nanotube and poly(phenosafranine) composite electrode for selective and sensitive rutin detection
Articles > Article · 2023
Authors: Merve Aktürk, Zekerya DURSUN
Electroanalysis, Journal Indexed in SCI Expanded, International, WoS, 2023, vol 35
Summary
Abstract The preparation and characterisation of a new composite electrode with Co3O4 particles‐modified multi‐walled carbon nanotube (MWCNT) and poly(phenosafranine), as well as its novel application for the voltammetric detection of rutin was described. The resulting composite electrode was characterised using scanning electron microscopy (SEM), X‐ray photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS). In the optimised experimental conditions, the oxidation peak current (Ipa) of rutin showed a linear increase in concentration, between 0.008–0.6 and 0.80–6.0 μmol L−1, with a detection limit of 0.00379 μmol L−1. Due to its good selectivity and stability, the composite electrode was successfully applied in detecting rutin in pharmaceutical formulations.