
Journal of Taibah University for Science, Год журнала: 2024, Номер 18(1)
Опубликована: Ноя. 11, 2024
The study investigated the sensitive and selective electrochemical behavior of Brucine (BC) using electrochemically polymerized L-Arginine (LA) modified with a composite comprising biosynthesized copper oxide (CuO) nanoparticles (NPs) carbon paste electrode (PAMCuONPs/CPE). PAMCuONPs/CPE showed an optimum reversible redox-peak at 0.2 M phosphate buffer solution (PBS) pH 2.5, allowing detection BC. characterization bare CuONPs (BCuONPs/CPE) was performed scanning-electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS). Electrochemical impedance (EIS), cyclic voltammetry (CV), linear sweep (LSV) methods were employed to evaluate performance PAMCuONPs/CPE. Experimental parameters, including pH, variation concentration, investigated. exhibited limit (LOD) 0.12×10−6 quantification (LOQ) 0.43×10−6 M. It demonstrated good reproducibility, repeatability, stability. successfully validated in determining BC real samples.
Язык: Английский