Electrochemical Sensor Based on CoMgFe-Trimetallic Layered Double Hydroxides for Flubendiamide Detection in Water Samples
Source abstract
Abstract
Flubendiamide (FBD) is a widely used insecticide in agriculture, known for its effectiveness in controlling crop pests. However, its use presents significant risks to both the environment and human health. In this study, a novel pencil graphite electrode (PGE) was successfully modified with CoMgFe trimetallic layered double hydroxides (CoMgFe-TLDHs) to achieve sensitive and selective electrochemical detection of 20% FBD, a toxic insecticide posing ecological and health concerns. The CoMgFe-TLDHs were synthesized using a simple co-precipitation method and characterized by thermogravimetric differential thermal analysis, X-ray diffraction, infrared spectroscopy, and scanning electron microscopy. These materials were then applied to the PGE surface, significantly enhancing its electrochemical performance, as demonstrated by differential pulse voltammetry and cyclic voltammetry. Under optimized conditions, PGE/ionic liquid/CoMgFe-TLDHs electrode exhibited excellent analytical properties toward FBD determination. A calibration curve was well-established from 0.8 to 100 μM for FBD with a detection limit of 0.36 μM. The proposed sensor enabled the practical application of sensitive FBD detection in tape and river water with good recovery rates.
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Research context
OpenAlex topics: Electrochemical sensors and biosensors · Electrochemical Analysis and Applications · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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