An electrochemical sensor-based carbon black associated with a modified mixed oxide (SiO2/TiO2/Sb2O5) for direct determination of thiamethoxam in raw honey and water samples

Microporous carbon for fast and simple electrochemical detection of imidacloprid insecticide in fruit and water samples

“…The selectivity of the sensor was tested in the presence of potential interfering insecticides and ions including carbendazim, dichlorvos, ethion, indoxacarb, Na + , K + , Ca 2+ , Cl − , Br − , I − , and SO 3 2− . 44,52 The developed sensor was subjected to solutions containing 0.5 mM IMP in the absence or presence of 15-fold of the above-mentioned interferences. No significant change (<5%) in the peak currents was observed upon the addition of all the tested interferences, demonstrating excellent selectivity of the developed sensor toward IMP detection.…”

“…. 44,52 The developed sensor was subjected to solutions containing 0.5 mM IMP in the absence or presence of 15fold of the above-mentioned interferences. No signicant change (<5%) in the peak currents was observed upon the addition of all the tested interferences, demonstrating excellent selectivity of the developed sensor toward IMP detection.…”

Development of an electrochemical sensor based on ternary oxide SiO2/Al2O3/SnO2 modified with carbon black for direct determination of clothianidin in environmental and food samples

“…Thus, carbon black stands out, for presenting an increase in electrocatalytic capacity and electroactive area of the electrode, enabling maximization of the concentration on the electrode surface and facilitating the competition of electronic transfer in the processes of oxidation or reduction of the species of interest. 37–40 In this perspective, metallic nanoparticles 41–43 and especially materials based on oxides and mixed oxides 44,45 stand out in surface area due to their unique electroactivity and electrocatalytic properties.…”