WATER ANALYSIS SENSOR ELECTRODE

摘要

A water analysis sensor electrode (10) for determining an analyte in water. The sensor electrode (10) has a closed sensor electrode housing (12) with an electrolyte solution (18), a measuring electrode (14) arranged in the electrolyte solution (18) and a gas bubble (20) enclosed in the sensor electrode housing (12). The lower distal end of the sensor electrode housing (12) is sealed with an ion-selective sensor electrode diaphragm (16). In the interior of the sensor electrode housing (12), the sensor electrode (10) has a rigid rod element (22) of circular cross section which is inserted into the interior of the sensor electrode housing (12), with the result that a continuous open capillary channel (30) extends over the axial length of the sensor electrode housing (12) on the inner wall (24) between the rod element and the inner wall (24).