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 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]