Grafting of Molecularly Imprinted Polymer on Modified Graphene Oxide for Highly Selective Determination of Diphenylamine in Apple Samples

The Demand for low coast, high resistance and selective sensor is growing. This paper reports on a new sensor based on molecularly imprinted polymer (MIP) for sensitive and selective detection of Diphenylamine in apple samples. The MIP has been prepared on the graphene oxide(GO) matrix and DPA used as target and β-cyclodextrin (β-CD) as the functional monomer. Imprinted sites were formed by the inclusion complex through interaction between the DPA and β-CD and subsequently washing target from the matrix. On the other hand NIP has been synthesized and observed that MIP showed higher binding capacity than NIP, and also the selectivity of MIP for DPA was confirmed toward similar structures like aniline and 1- naphthylamine