Floret-like manganese doped tin oxide anchored reduced graphene oxide for electrochemical detection of dimetridazole in milk and egg samples

A floret-like manganese doped tin oxide (Mn-SnO) anchored on reduced graphene oxide (rGO) modified glassy carbon electrodes (GCE) was efficiently developed to detect the prophylactic drug of the dimetridazole (DMZ). The obtained nanocomposite structural features were systematically studied through various analytical and spectroscopic measurement techniques. The monitoring of DMZ in poultry farms is crucial because excess levels can have carcinogenic threats. Hence, it is important to produce effective, easily reproducible, and sustainable DMZ sensors for monitoring DMZ contamination. Mn-SnO@rGO nanocomposite was fabricated, and it was utilized as a modified electrode with enhanced electrochemical performance, better stability, and reproducibility towards DMZ detection. Moreover, the electrochemical response of the newly fabricated nanocomposite-based electrode towards DMZ was linear over a wide concentration range from 0.009 mu M to 1291 mu M and a low-level detection limit of 2 nM. In addition, the fabricated Mn-SnO@rGO nanocomposite modified GCE was effectively employed to detect DMZ in spiked samples of water, egg, and milk.

Automated summary

A floret-like Mn doped SnO anchored on rGO modified GCE was developed for efficient detection of the prophylactic drug DMZ, with enhanced electrochemical performance, stability, and reproducibility. The nanocomposite-based electrode showed linear response towards DMZ over a wide concentration range and a low-level detection limit, and was effectively employed to detect DMZ in spiked samples of water, egg, and milk.