internal reference electrode

https://doi.org/10.1351/goldbook.I03106
An 'inner' @[email protected] which is contained inside an @[email protected] 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 @[email protected] is selective. This 'inner' filling solution is in contact with the ion-selective @[email protected]
Source:
PAC, 1994, 66, 2527. (Recommendations for nomenclature of ionselective electrodes (IUPAC Recommendations 1994)) on page 2533 [Terms] [Paper]