It is not always possible to tell by looking at an electrode or a titration curve, whether the sensor is still suitable for the desired analytic quality. Only the regular replacement of the sensor makes it possible to ensure that optimum analysis results can be obtained.
Metrohm is now offering a completely new sensor concept for the purpose of eliminating the risk of a gradual worsening of analysis quality. The new generation of ion-selective electrodes, the scION, is based on a modular concept. Whereas the electrode shaft, that is not critical for performance, can be used over and over again, an inexpensive sensor tip on a thick-film basis permits routine replacement, thus guaranteeing the best possible performance.