Issue 5, 2025

Determination of paclobutrazol using square wave voltammetry based on a molecularly imprinted polymer and boron-doped copper oxide/graphene nanocomposite

Abstract

In the present study, a novel voltammetric sensor based on a boron-doped copper oxide/graphene (B-CuO-Gr) nanocomposite and molecularly imprinted polymer (MIP) was developed for the detection of paclobutrazol (PAC) in apple and orange juice samples. The B-CuO-Gr nanocomposite was prepared using sol–gel and calcination methods. After modifying glassy carbon electrodes with the B-CuO-Gr nanocomposite, PAC-imprinted electrodes were prepared in the presence of 100.0 mM pyrrole (Py) monomer and 25.0 mM PAC using cyclic voltammetry (CV). After elucidating the surface properties of the prepared B-CuO-Gr nanocomposite and PAC-imprinted electrodes using various characterization techniques, the PAC-imprinted sensor was successfully applied to apple and orange juice samples, demonstrating high recovery. A linear range of 1.0 × 10−9 to 1.0 × 10−8 M PAC (R2 = 0.9983) and a detection limit (LOD) of 3.30 × 10−10 M were observed, along with high selectivity, stability, and reproducibility for the MIP/B-CuO-Gr/GCE sensor.

Graphical abstract: Determination of paclobutrazol using square wave voltammetry based on a molecularly imprinted polymer and boron-doped copper oxide/graphene nanocomposite

Supplementary files

Article information

Article type
Paper
Submitted
24 Oct 2024
Accepted
23 Dec 2024
First published
26 Dec 2024

Anal. Methods, 2025,17, 1080-1089

Determination of paclobutrazol using square wave voltammetry based on a molecularly imprinted polymer and boron-doped copper oxide/graphene nanocomposite

Ç. S. Meriç, H. A. Deveci, M. M. Kaya, A. Deveci, N. Özdemir, H. Boyacıoğlu and M. L. Yola, Anal. Methods, 2025, 17, 1080 DOI: 10.1039/D4AY01947D

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