SENSOR FOR ANALYSING OXIDISING GAS, METHOD FOR PRODUCING SAID GAS AND METHOD FOR DETERMINING THE CONCENTRATION OF THE OXIDISING GAS

摘要

There is proposed an electrochemical sensor to determine the concentration of an oxidizing gas in the gas or liquid to be investigated, comprising a housing containing an electrolyte, a measuring electrode, and a counter-electrode containing carbon material having a potential of at least 750 mV when measured with respect to a hydrogen reference electrode in the same electrolyte, said measuring electrode and said counter-electrode being in contact with the electrolyte. The invention relates also to a method of manufacturing of said electrochemical sensor and a method of determining the concentration of an oxidizing gas in the gas to be investigated.