Molecularly Imprinted Electrochemiluminescence Sensor for Detection of Enrofloxacin in Prefabricated Dishes
In this paper,a molecularly imprinted electrochemical luminescence(MIP-ECL)sensor was developed for the specific detection of enrofloxacin(ENR)based on graphite phase carbon nitride nanosheets(g-C3N4 NSs)and molecularly imprinted polymers.The g-C3N4 NSs with excellent electrochemical luminescence properties was used as luminophore.With ENR as the template molecule and o-phenylenediamine as the functional monomer,molecularly imprinted polymer film was prepared on the surface of a modified electrode through cyclic voltammetry.Under optimal conditions,the MIP-ECL sensor exhibited a linear response range for ENR from 5×10-9 to 1×10-5 mol/L,with a detection limit as low as 9.6×10-10 mol/L.Additionally,the sensor demonstrated a spiked recovery rate in actual samples ranging from 98.30%to 106.20%.The research indicates that the sensor possesses advantages such as low cost,high sensitivity,and good selectivity,making it highly suitable for the rapid screening of enrofloxacin in pre-packaged foods and other food products.