Electrodes in which a support matrix, containing an
ion exchanger (either cationic or anionic), a plasticizer solvent, and possibly an uncharged,
selectivity-enhancing species, forms the ion-selective
membrane which is usually interposed between two aqueous solutions. The support used can be
either macroporous [e.g. poly(propylene carbonate)
filter, glass frit, etc.] or microporous (e.g. '
thirsty' glass or
inertpolymeric material such as PVC) yielding with the ion-exchanger and the solvent a '
solidified' homogeneous mixture. These electrodes exhibit a response due to the presence of
the ion-exchange material in the
membrane. The solvent-
polymeric-
membrane is an example.
Source:
PAC, 1994, 66, 2527
(Recommendations for nomenclature of ionselective electrodes (IUPAC Recommendations
1994))
on page 2534
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
