determination of hydrogen ion concentration...method for determining the concentration of one of the species in the scheme A + H2O ⇄ B + H3O+. For example, a hydrogen electrode (or more commonly a glass electrode, which responds in the same way) together with a reference electrode, commonly the calomel electrode, serves to measure the actual hydrogen ion concentration, or the pH, of the...
use in potentiometric analysis...of ion-selective electrodes are the glass, liquid-ion-exchanger, solid-state, neutral-carrier, coated-wire, field-effect transistor, gas-sensing, and biomembrane electrodes. The glass membranes in glass electrodes are designed to allow partial penetration by the analyte ion. They are most often used for pH measurements, where the hydrogen ion is the measured species.
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