Akademik Veri Yönetim Sistemi
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, sa.9, 2024 (SCI-Expanded)
In this study, we developed a facile and low-cost method to prepare a modified electrode by coating the pencil graphite electrode (PGE) surface with 8-nitroquinoline (8-NQ). The surface modification process was carried out by electrochemical reduction of 8-NQ on the PGE surface in ethanol solution. The optimum conditions were determined for the experimental studies. The differential pulse voltammetry was used to determine rutin with the modified electrode (8-NQ/PGE). The developed electrode showed excellent performance for rutin oxidation in a pH 3.0 Britton Robinson buffer (BR). In this media, linearly increasing anodic peak currents were observed with the concentration of rutin in two wide concentration ranges (i.e., 0.016-0.96 mu M and 0.96-19.73 mu M), the sensor showed a low detection limit (i.e., 4.14 nM) (3 s m-1). It displayed good stability and selectivity. Also, it was used successfully for the determination of rutin in orange juice samples. An 8-nitroquinoline coated pencil graphite surface for rutin.High conductive surface with a good stability and reproducibility.An extensive linear range with a low detection limit of 4.14 nM (3 s m-1).