Electrochemical detection of nitrate, nitrite and ammonium for on-site water quality monitoring

Stability Enhancement of Laser-Scribed Reduced Graphene Oxide Electrodes Functionalized by Iron Oxide/Reduced Graphene Oxide Nanocomposites for Nitrite Sensors

“…Indeed, they can be implemented for on-site monitoring of nitrite in the field [9]. The detection of nitrite ions with electrochemical sensors is based on monitoring oxidation/reduction over diverse types of working electrodes [10,11]. Nevertheless, nitrite oxidation occurs at a high potential and shows slow kinetics [12].…”

Portable Multi-Channel Electrochemical Device with Good Interaction and Wireless Connection for On-Site Testing

“…Therefore, a high-resolution electrochemical analysis device can measure the effective peak even under high background current. The water quality assessment of natural water requires on-site testing [ 25 , 26 , 27 ]. Water resource regulators try to maintain the COD Mn and multiple water quality indicators for assessing the organic pollution level within a reasonable range so as to enhance the control of the state of water pollution [ 28 , 29 , 30 ], realizing the management of water resources.…”

Nitrite anodic oxidation at Ni(ii)/Ni(iii)-decorated mesoporous SnO2 and its analytical applications

“…12 These risks, together with the deleterious effects of nitrite pollution on aquaculture production, 13 have triggered the increasing interest currently shown in finding new methods, as simple, fast and precise as possible, for nitrite analytical detection and quantification. 14–17…”

“…12 These risks, together with the deleterious effects of nitrite pollution on aquaculture production, 13 have triggered the increasing interest currently shown in finding new methods, as simple, fast and precise as possible, for nitrite analytical detection and quantification. [14][15][16][17] Among these methods, electrochemical ones appear to be the most enticing because, compared to classical standard techniques such as chromatography 18,19 or spectroscopy, 20 they have several advantages: fast response time, simplicity of the equipment and of the sample preparation, possibility of miniaturization, portability and high suitability for on-site determination without the need for specialized personnel. 21 The vast majority of such electrochemical methods rely on nitrite anodic oxidation, since the analytical response recorded during its electro-reduction is susceptible to interference from other cathodic processes involving dissolved oxygen and nitrate.…”