In this research paper, a novel voltammetric sensor based on boron doped copper oxide/graphene (B-CuO-Gr) nanocomposite and molecularly imprinting polymer (MIP) was developed for paclobutrazol (PAC) in apple and orange juice samples. Sol-gel and calcination methods were firstly applied to the preparation of the B-CuO-Gr nanocomposite. After the modification of glassy carbon electrodes with B-CuO-Gr nanocomposite, PAC imprinted electrodes were prepared in presence of 100.0 mM pyrrole (Py) monomer and 25.0 mM PAC by using cyclic voltammetry (CV). After elucidating the surface properties of the prepared B-CuO-Gr nanocomposite and PAC imprinted electrodes using some characterization techniques, the prepared PAC imprinted sensor was successfully applied to apple and orange juice samples with high recovery. A linearity of 1.0×10-9 - 1.0×10-8 M PAC (R2=0.9983) and a detection limit (LOD) of 3.30×10-10 M were observed and high selectivity, stability, and reproducibility properties of MIP/B-CuO-Gr/GCE sensor was also investigated.

You have access to this article

Please wait while we load your content... Something went wrong. Try again?