Fabrication and investigating of a nano-structured electrochemical sensor to measure the amount of atrazine pollution poison in water and wastewater

Abstract

In this article, a layer of nickel and cobalt salt is placed on the surface of a pure gold electrode, and in this way, the electrode is modified and finally a modified gold sensor is made, which is used to measure atrazine is used to remove the pollution poison in water and wastewater. This modified electrode is made at room temperature, which can be used at optimal pH = 9 stabilized by Britton-Robinson buffer and other chemical and device parameters. In this experiment, cyclic voltammetry techniques were used to study and investigate electrochemical reactions and SEM to study the structured of the electrode. The structured of this sensor is completely new and presented for the first time, and it is able to respond to very small amounts of these substances in the samples containing it. This electrode shows a linear behavior in the concentration of 100 nanomolar of atrazine poison. The detection limit of this electrode is 0.009 nM for atrazine. High signal to noise, wide linear range of response, high sensitivity and appropriate selectivity of this sensor will be its unique advantages.