1. Definitions
Potentiometry is an analytical method that links a measurement of electrode potential to the activity of a species in solution. The corresponding electrode is called an indicator electrode.
The indicator electrode (of potential E ind ), chosen according to the nature of the solute to be determined, is included in a galvanic chain comprising a reference electrode (of potential E ref ) and one or two electrolytes. Depending on whether there are one or two electrolytes, the potentiometric chain can be written :
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Definitions
Activities and concentrations
Bibliography
- (1) - CONWAY (B.E.) - Ionic interactions and activity behavior of electrolyte solutions (Interactions ioniques et activité dans les solutions d'électrolyte). - Chap. 2, p. 111-222. Dans CONWAY (B.E.), BOCKRIS (J.O'M.) et YEAGER (E.). – Comprehensive treatise of electrochemistry (Traité complet d'électrochimie). Plenum Press, New York, vol. 5,...
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AFNOR Association Française de Normalisation http://www.afnor.org
ASTM American Society for Testing and Materials http://www.astm.org
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