Based on the method of cyclic voltammetric polymerization,30mmol/L acetic acid as template molecule,5mmol/L phenol as functional monomer,0.1mol/L potassium chloride and 0.05mol/L phosphate buffer solution(pH 5.4) as the polymerization base solution,the polymerization potential was 0.8~1.2V,the scanning coil number was 20,the elution of 0.1mol/L sodium bicarbonate solution was used as eluting solution for 20min,and the acetic acid molecular printing film with best performance was obtained.The film was characterized by cyclic voltammetry(CV),impedance,scanning electron microscopy and differential pulse,the effects of different pH phosphate buffer solutions,different concentrations of eluent and different eluting time on the properties of the film were investigated.When 0.05mol/L phosphate buffer solution (pH 5.4) was used as the optimum substrate,there was a good linear relationship between acetic acid imprinted film and acetic acid molecule in the concentration range of 0~45×10-9mol/L.The detection limit was 2.85×10-9mol/L,and the reproducibility and stability of the film were studied.
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