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Detection of Carbendazim in Natural Waters Using a Sensor Based on Magnetite Nanoparticles Modified with Ascorbic Acid/β‐Cyclodextrin
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机译：Detection of Carbendazim in Natural Waters Using a Sensor Based on Magnetite Nanoparticles Modified with Ascorbic Acid/β‐Cyclodextrin
Abstract This paper describes the development of an electrochemical sensor for carbendazim detection using a glassy carbon electrode modified with a new nanomaterial obtained from the synthesis of magnetite nanoparticles stabilized with ascorbic acid and β‐cyclodextrin. The nanoparticles were characterized and the sensor was evaluated by electrochemical impedance spectroscopy and square wave voltammetry. The calibration curves were linear for carbendazim concentration ranges of 3.33–13.29 μmol L−1 and 16.61–29.82 μmol L−1 with detection limits of 0.43 μmol L−1 and 2.34 μmol L−1, respectively. The proposed sensor represents a fast, efficient and low‐cost analytical tool for pesticide monitoring in natural waters.
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