▎ 摘　　要

The goal of the ongoing research is to create an electrochemical sensor that can detect tyrosine in food that is stable, sensitive, and selective. This sensor will be built of a conducting polymer called poly (3,4,-dioxythiophene) (PEDOT) and a reduced graphene oxide (rGO) nanocomposite. An electrodeposition method was used to create the glassy carbon electrode (GCE) modified with rGO-PEDOT nanocomposite. The electrodeposition of rGO-PEDOT on GCE was confirmed by SEM and EIS analysis. Electrochemical studies using DPV revealed that rGO and PEDOT nanostructures had a synergistic effect in promoting charge transfer as a sensitive and selective sensor with a linear range of 1 to 120 ng ml(-1). The detection limit and sensitivity were calculated to be 0.012 ng ml(-1) and 0.3578 mu A/ngml(-1), respectively. The usefulness and precision of rGO-PEDOT/GCE for determining tyrosine in prepared real samples from beans were explored. The proposed tyrosine sensor's practical viability was evaluated to estimate the level of tyrosine in genuine bean samples. The results showed that the recovery values (91.52% to 98.31%) and RSD values (2.26 % to 4.93%) were satisfactory. The results demonstrate that the developed tyrosine sensor has high precision, acceptable validity, and excellent application potential.