Abstract
AbstractWe report the fabrication and analytical performance studies of electrochemical sensors based on hydrothermally grown 3D MoS2‐microflower‐modified Glassy Carbon (GCE) and Carbon Paste Electrodes (CPE) for the sensitive detection of the insecticide imidacloprid (IMI). As compared to MoS2/GCE, the fabricated MoS2/CPE demonstrates a faster electron transfer and better catalytic ability. MoS2/CPE sensor delivers its best performance towards the determination of IMI in PBS solution of pH 7.4, owing to its porous nature which can accommodate a higher number of active electrochemical reaction sites. The sensor exhibits a sensitivity value of 2.296 μA μM−1 cm−2 with lower detection and quantification limits of 12±0.24 nM and 40±0.8 nM respectively. The proposed sensor also exhibits linearity in the detection of IMI from 1 to 100 μM.
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