Wang Li, Li Mengyue, Li Bo, Wang Min, Zhao Hua, Zhao Fengnian
College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China.
Foods. 2023 Jun 6;12(12):2277. doi: 10.3390/foods12122277.
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.
多菌灵（CBZ）滥用会导致农药残留，这可能威胁环境和人类健康。本文提出了一种基于激光诱导石墨烯（LIG）的便携式三电极传感器，用于多菌灵的电化学检测。与传统的石墨烯制备方法相比，LIG是通过将聚酰亚胺薄膜暴露于激光下制备的，易于制备且可图案化。为了提高灵敏度，在LIG表面电沉积了铂纳米颗粒（PtNPs）。在最佳条件下，我们制备的传感器（LIG/Pt）与1-40μM范围内的多菌灵浓度具有良好的线性关系，检测限低至0.67μM。此外，该传感器对废水中多菌灵的检测具有良好的回收率，为水样中多菌灵残留的实时分析提供了一种快速可靠的方法。
