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Bacterial Detection & Identification Using Electrochemical Sensors
Published on: April 23, 2013
Electrochemical Sensor Based on Laser-Induced Graphene for Carbendazim Detection in Water
Li Wang1, Mengyue Li1, Bo Li1
1College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China.
Abstract:
Carbendazim (CBZ) abuse can lead to pesticide residues, which may threaten the environment and human health. In this paper, a portable three-electrode sensor based on laser-induced graphene (LIG) was proposed for the electrochemical detection of CBZ. Compared with the traditional preparation method of graphene, LIG is prepared by exposing the polyimide film to a laser, which is easily produced and patterned. To enhance the sensitivity, platinum nanoparticles (PtNPs) were electrodeposited on the surface of LIG. Under optimal conditions, our prepared sensor (LIG/Pt) has a good linear relationship with CBZ concentration in the range of 1-40 μM, with a low detection limit of 0.67 μM. Further, the sensor shows good recovery rates for the detection of CBZ in wastewater, which provides a fast and reliable method for real-time analysis of CBZ residues in water samples.
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