Before starting a sample analysis, it is essential to know if the electrode is in a good state or not. A properly working electrode guarantees high quality measurements and ensures accurate and precise results. Furthermore, tedious error tracking can be omitted, and no sample is wasted due to a defect or an old electrode.
Several procedures exist to check the health of an electrode. This Application Bulletin outlines the most convenient process by measuring the potential at different wavelengths in degassed deionized water.