An 'inner'
reference electrode which is contained inside an
ion-selective electrode assembly.
Note: The system frequently consists of a silver/silver chloride electrode in contact with an appropriate solution containing fixed concentrations of chloride and the ion for which the
membrane is selective. This 'inner' filling solution is in contact with the ion-selective
membrane.
Source: PAC, 1994,
66, 2527. (
Recommendations for nomenclature of ionselective electrodes (IUPAC Recommendations 1994)) on page 2533 [
Terms] [
Paper]