Title: heterogeneous crystalline membrane ion-selective electrode Long Title: IUPAC Gold Book - heterogeneous crystalline membrane ion-selective electrode DOI: 10.1351/goldbook.09116 Status: current Definition Ion-selective electrode in which the ion-selective membrane is a crystalline material mixed with an inert matrix (such as silicone rubber or polyvinyl chloride), or placed on hydrophobized graphite or conducting epoxy resin, to form a heterogeneous sensing membrane. Related Term - ion-selective membrane: https://goldbook.iupac.org//terms/view/09119 Source - PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 662 (https://doi.org/10.1515/pac-2018-0109) Other Outputs - html: https://goldbook.iupac.org/terms/view/09116/html - json: https://goldbook.iupac.org/terms/view/09116/json - xml: https://goldbook.iupac.org/terms/view/09116/xml Citation: Citation: 'heterogeneous crystalline membrane ion-selective electrode' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.09116 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-07-26T16:31:26+00:00