Akademik Veri Yönetim Sistemi
International Journal of Pure and Applied Sciences, cilt.7, sa.1, ss.1-12, 2021 (Hakemli Dergi)
In this study, the voltammetric behavior of chlorpyrifos(CPF) was investigated using reduced graphene oxide-modified glassy carbon electrode(RGO/GCE). FT-IR, XRD and TEM methods were employed in the characterization of graphene oxide and reduced graphene oxide prepared by Hummers’ method. Electrochemical characterization of CPF was determined by cyclic voltammetry(CV) and differential pulse voltammetry(DPV). Determination of CPF was performed by differential pulse adsorptive stripping voltammetry (DPAdSV) on RGO/GCE. Two working ranges between 5.19x10-7-8.12x10-6M and 8.12x10-6-2.18x10-3M were obtained in the CPF calibration curve created by DPAdSV method on RGO/GCE and the limit of detection was found to be 1.56x10-7M. Recovery of CPF from tap water samples on RGO/GCE was 101.0%. In conclusion, a selective and sensitive sensor was developed for the determination of CPF, which can be used in real samples.