Ammonium – specifications March 15, 2015UncategorizedEinat Specifications Used in the fields of Environmental Science, Ecology, Chemistry, Biology, etc. Uses a permanently filled ion selective electrode to accurately measure the amount of ammonium ion in a solution. Includes a ammonium sensor electrode, ammonium Ionic strength adjuster (ISA), ammonium 1000 ppm standard. The sensor is pre-calibrated at the factory. Offsetting is conducted by using a 10 ppm ammonium solution. Experiment duration: 1 second to 31 days.