{"term":{"id":"09121","title":"pH-sensitive electrode","longtitle":"IUPAC Gold Book - pH-sensitive electrode","doi":"10.1351\/goldbook.09121","code":"09121","status":"current","definitions":[{"id":1,"text":"Potentiometric electrochemical sensor that measures pH as a linear function of electrode potential.","notes":{"1":"Measurement principles or methods include the use of an ion-selective electrode (see glass pH-sensitive electrode), ion-selective field effect transistor, metal-metal oxide electrodes, or redox electrode (e.g. hydrogen electrode, quinhydrone electrode)."},"links":[{"term":"electrochemical sensor","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/09072"},{"term":"glass pH-sensitive electrode","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/09115"},{"term":"ion-selective field effect transistor","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/09118"},{"term":"redox electrode","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/09095"}],"sources":["PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 666 (https:\/\/doi.org\/10.1515\/pac-2018-0109)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/09121\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/09121\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/09121\/plain"},"citation":"Citation: 'pH-sensitive 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.09121","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":"2026-04-18T03:09:53+00:00"}}