Laboratory solid-contact potassium-selective electrode. Suitable for operation with various modern laboratory ion-meters.
While operating ELIS-121(К) Electrode, a two-key reference electrode filled with NH4NO3 or NH4Cl solution should be used, not KCl.
Choosing an ion-selective electrode, first of all make sure the measurement technique is applicable to the specific conditions. In case of any problems, contact the experts or developers of the measurement methodology. Remember that most ion-selective electrodes do not offer high selectivity and demonstrate a fairly narrow measurement range which makes up 4 to 6 orders of concentrations. While making decision to purchase a specific electrode, it is important to thoroughly estimate its specifications, recommendations for use and impeding ions.