Disposable electrochemical bio-sensor for the quantitative determination of analyte concentrations in fluids

disposable biosensor comprising a material (1) of support on which tracks (2) electrically conductive and an electrode system comprising a counter (6) and a working electrode formed from a layer (5) are applied reactive layer (3) dielectric insulation covering material (1) support, as well as the tracks (2) electrically conductive and has recesses for contact (4) of a potentiostatic unit and the electrode system, and as a biocomponent recognizing analytes, characterized in that: - the reactive layer contains, besides a material that conducts electrons, one electron transfer mediator which has a vapor pressure of at least 1, 33u10-3 N / m2 (1u10-5 mmHg) at 25 ° C and - the electrode system of a layer (8) is covered protective polymer.