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pH indicator electrode for a ph meter

- Feb 26, 2018 -

pH indicator electrode

An electrode that responds to hydrogen ion activity in the solution and changes in the electrode potential is called a pH indicator electrode or a pH measurement electrode. pH indicator electrode hydrogen electrode, antimony electrode and glass electrode several, but the most commonly used glass electrode. The glass electrode consists of a glass strut and a hydrogen-sensitive glass film made of a special composition. The glass film is generally spherical, the bulb filled with reference solution, insert the internal reference electrode (usually with silver / silver chloride electrode), with the electrode cap sealing leads to wire, fitted with socket, to become a pH indicator electrode. The most commonly used pH indicator electrode on the market is a 231 glass pH electrode. A single pH indicator electrode can not be measured, it must be measured with the reference electrode.


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