PHOTOELECTROCHEMICAL ETHYL CARBAMATE SENSOR BASED ON CDS/GRAPHENE MODIFIED BY MOLECULARLY IMPRINTED
The molecular imprinting polymer was combined with the photoelectrochemical sensor,and the direct-laser-writing technology was used to generate CdS/Graphene to study the molecularly imprinted photoelectrochemical sensor of ethyl carbamate.The molecular imprinted polymer of ethyl carbamate was prepared by solution polymerisation,and the influence of other conditions such as the molar ratio of each component in the polymer on the photocurrent signal of ethyl carbamate was explored.The experimental results show that the designed sensor has a good linear relationship between 0.000 1 mmol/L and 0.007 5 mmol/L for the concentration of ethyl carbamate in the designed sensor,with a detection limit of 0.08 µmol/L,and its linear correlation coefficient R2 is 0.991 84.