A PROCESS FOR PRODUCING A CARBON-CERAMIC-MATERIAL-BASED ELECTROCHEMICAL SENSOR FOR THE DETERMINATION OF DISSOLVED OXYGEN AND AN ELECTROCHEMICAL SENSOR PRODUCED BY SAME

摘要

The present invention relates to a process for producing a carbon-ceramic-material-based electrochemical sensor that is used for determining the oxygen dissolved in water and an additional subject matter of the present invention is said sensor. The sensor consists of a material containing SiO₂/SnO₂ and the electroactive species is synthesized in situ within the mixed oxide. The sensor displays good performance, has good mechanical strength, exhibits reproducibility, is selective, has a long life span and a good detection limit of the order of ppb (parts per billion). The sensor can be used within various areas, for environmental monitoring, in wastewater treatment plants and for controlling O₂ concentrations in industrial processes.