heterogeneous crystalline membrane electrodes

https://doi.org/10.1351/goldbook.09109
ISE prepared of an active substance, or mixture of active substances, mixed with an inert matrix (such as silicone rubber or \(\ce{PVC}\)), or placed on hydrophobized graphite or conducting epoxy resin, to form a heterogeneous sensing membrane.
Source:
PAC, 2020, 92, 641. (Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)) on page 664 [Terms] [Paper]