Skip to main content

Investigation of electrochemical detection of nitrite and nitrate in water for environmental application

M. Talbi, A. Al-Hamry, T. Lu, M. Ben Ali, O. Kanoun

Abstract

This paper is about electrochemical investigations of nitrite (NO<sub>2</sub><sup>-</sup>) and nitrate (NO<sub>3</sub><sup>-</sup>) detection in water. Herein, a study based on functionalization of carbon screen-printed electrodes (CSPE) with chitosan and tetrasulfonated copper (II) phthalocyanine nanocomposite (Chit/Ts-CuPc). Cyclic voltammetry (CV) surveys were carried out with ferri/ferrocyanide probe and analytes for preliminary investigations to confirm the efficacity of the electrode’s functionalization. Differential pulse voltammetry (DPV) measurements then were performed for more precise and sensitive detection with different analytes concentrations. Further studies regarding pH optimization, electrodes kinetics and calibration curve will be performed to calculate the sensor’s figures of merits. As well as a real sample test is to be done to prove that the developed sensors are very promising for effective nitrite and nitrate detection.

Keywords
Nitrate; Nitrite; Nanocomposites; Electrochemical detection
Download
IMEKO-TC19-2022-14.pdf
DOI
10.21014/tc19-2022.14
IMEKO TC
TC19 - Environmental Measurements

Event details

Event
TC19 Symposium: Metrology on Environmental Instrumentation and Measurements (EnvIMEKO 2022)
Technical Committee
TC19
Email
envimeko.lemans.2022@gmail.com
Place
La Mans, FRANCE
Time
2 June 2022 - 3 June 2022
Website
https://easychair.org/cfp/EnvIMEKO_2022

Back to the proceedings