Abstract: The present disclosure relates to an ion-selective electrode for an electrochemical sensor for determining a measurand representing a concentration of an analyte in a measuring medium, including a probe body made of a first material and a sensor element including a base body made of a second material different from the first material and an ion-selective layer arranged on the base body. The probe body is connected to the base body by way of a liquid-tight joint, where the joint is formed by a receptacle, serving as a first joining partner, and a joining section protruding into the receptacle, serving as a second joining partner.

Abstract: The present disclosure relates to a potentiometric probe for measuring a measured variable that represents an ion concentration in a measuring medium, including a probe base including a sensor circuit, and two electrochemical half-cells arranged such that one of the half-cells surrounds at least one portion of the other half-cell, wherein at least one of the half-cells is configured as a module which is connected to the probe base via a mechanical and electrical interface. In another embodiment, one of the half-cells is a measuring half-cell including an ion-selective membrane and a terminal lead which electrically contacts the ion-selective membrane. The other half-cell is a reference half-cell, wherein the measuring half-cell and/or the reference half-cell are each configured as a module which is connected to the probe base via a mechanical and electrical interface.

Abstract: The present disclosure relates to a reference electrode including an electrical conductor, an electrically conductive salt bridge provided for contact with a measuring fluid, and a medium electrically conductively connecting the electrical conductor and the salt bridge to each other, wherein the medium and the electrical conductor are completely isolated with respect to the measuring fluid. The salt bridge comprises a polymer matrix and a conducting salt, the conducting salt is formed from a cation and an anion, and the cation and/or the anion are at least partially kept from leaching in the polymer matrix. The present disclosure further relates to an electrochemical sensor, a method for producing the reference electrode and a method for regenerating and/or conditioning the reference electrode.

Abstract: The present disclosure relates to a glass electrode including an analyte-sensitive glass membrane, an electrically conductive lead, and an intermediate layer which conductively connects the lead and the glass membrane to one another. According to the present disclosure, the intermediate layer is made of an electron- and/or ion-conducting polymer.

Abstract: The present disclosure relates to an electrode of an electrochemical measuring system and includes a housing having a chamber in which an electrolyte is arranged, and a potential-forming element which is at least partially arranged in the chamber such that the electrolyte at least partially wets the potential-forming element. A discharge line is made of coinage metal or of an alloy comprising a coinage metal and contacts the potential-forming element. A closure element closes the housing and guides discharge line therethrough. An adhesion promoter which comprises a glass and/or a glass-ceramic material and is arranged between the closure element and the discharge line.

Abstract: The present disclosure includes to a sensor element including a membrane having a first functionalized region and a second functionalized region and including a sensor element body on which the membrane rests. The sensor element body has at least one electrically conductive first conductor and an electrically conductive second conductor electrically insulated from the first conductor. The first conductor is electrically and/or electrolytically conductively connected to the first functionalized region of the membrane, and the second conductor is electrically and/or electrolytically conductively connected to the second functionalized region of the membrane. In another aspect of the present disclosure, a method for fabricating such a sensor element is disclosed.