A covalent organic framework/reduced graphene oxide composites-based electrochemical sensing platform for the detection of enrofloxacin

), and high selectivity even in the presence of structurally similar fluoroquinolones. The sensor also demonstrated good stability and reproducibility. When applied to spiked tap water samples, the platform achieved satisfactory recoveries of 84.1-99.7% and outperformed the conventional HPLC method at low ENR concentrations. These results highlighted the potential of the TAPB-PDA-COFs/RGO composite as a promising tool for environmental monitoring of antibiotic residues.