TY - JOUR AU - Deveci Soylu, Pervin AB - A novel electrochemical sensor for the detection of lead ions was constructed by using electrodeposition of gold nanoparticles (GNPs) and glutathione (GSH) onto reduced graphene oxide (rGO) to form a GSH@GNP@rGO nanocomposite on a glassy carbon electrode (GSH@GNP@rGO@GCE). The sensing properties of the obtained sensor were tested by Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV). Under optimized experimental conditions, the voltammetry response gradually raises by increasing the concentration (2-20 μΜ). The result showed that the GSH@GNP@rGO@GCE sensor exhibited high sensitivity towards Pb(II) with a low detection limit of 0.43 μMby DPV. Our studies suggest that the GSH@GNP@rGO nanocomposite could potentially be used for detecting Pb(II). 1 Introduction Environmental pollution of heavy metals has become of great concern today with the increase in industrialization and technological developments. [1, 2] Heavy metal toxicity is known to be a serious threat to health by spreading from many sources such as industrial activities [3], various urban wastes [4], mining [5], use of fertilizers [6] and pesticides in agriculture [7], exhaust gases of motor vehicles. [8] Due to their high toxicity, lead, arsenic, cadmium, chromium, and mercury are among the heavy metals that pose a danger to public health. [9, 10] Even low TI - A functional electrochemical sensing platform for the detection of lead ions DO - 10.21203/rs.3.rs-2449601/v1 DA - 2023-01-12 UR - https://www.deepdyve.com/lp/unpaywall/a-functional-electrochemical-sensing-platform-for-the-detection-of-DuJZrfEXpW DP - DeepDyve ER -