Redokselektroode

Redokselektroode, also known as redox electrodes or potentiometric sensors, are electrochemical devices used to measure the reduction-oxidation potential of a solution. This potential, often referred to as redox potential, indicates the relative tendency of a solution to either gain or lose electrons. Redox electrodes are typically constructed from an inert metal, such as platinum or gold, which acts as a surface for electron transfer reactions. A reference electrode, which provides a stable and known potential, is also an essential component of the system. The difference in potential between the redox electrode and the reference electrode is measured by a high-impedance voltmeter. This measured potential is then correlated to the concentration of oxidizing or reducing species present in the solution.

The primary application of redokselektroode is in monitoring and controlling chemical processes where redox reactions are significant. This includes water treatment for disinfection, aquaculture for monitoring water quality, and industrial processes for process control and optimization. They are also employed in environmental monitoring to assess pollution levels and in biological research to study metabolic processes. The interpretation of the measured redox potential requires understanding the specific chemical system being analyzed, as the potential is influenced by the species present and their concentrations, as well as factors like temperature and pH. Calibration of the electrode against standard solutions is crucial for accurate measurements.