Preferred Label : non-crystalline electrodes;
IUPAC definition : 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 inert
polymeric 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.;
Origin ID : N04187;
See also
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 inert
polymeric 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.
