title: [Ammonium-selective disc-electrode with the carrier-antibiotic nonactin. A method for the continuous enzymatic, electrochemical determination of urea, I (author's transl)].
abstract: An ammonium-selective disc-electrode is described; the membrane consists of a polyvinylchloride-matrix with an active phase of nonactin in tris (2-ethylhexyl)phosphate and diphenyl ether as the ion-selective plastic. One side of the membrane is in contact with the solution to be measured and the other with the front surface of a platinum wire, which is enclosed in acrylic glass. This arrangement results in a very low drift potential.
mesh_terms: D000900:Anti-Bacterial Agents; D004563:Electrochemistry; D004566:Electrodes; D007474:Ion Exchange; D008567:Membranes, Artificial; D008722:Methods; D014508:Urea / Q000032:analysis*
chemical_list: D000900:Anti-Bacterial Agents; D008567:Membranes, Artificial; D014508:Urea
vernacular_title: Ammoniumselektive Disk-Elektrode mit dem Carrier-Antibiotikum Nonactin.