potentiometryn.
/pəˌtɛnʃɪˈɒmᵻtri/, U.S. /pəˌtɛn(t)ʃiˈɑmətri/ Science.
The measurement of potential differences or electromotive forces by means of a potentiometer, esp. in electrochemistry.
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potentiometry1946
the world > matter > physics > electromagnetic radiation > electricity > voltage > electrical potential > [noun] > measurement of
potentiometry1946
1916 Jrnl. Amer. Chem. Soc. 38 2401 When a storage battery of constant voltage is used as a source of actuating current the alternating current obtained has a voltage steady enough for alternating current potentiometry.
1946 L. Michaelis in A. Weissberger Physical Methods Org. Chem. II. xxii. 1052 Potentiometry consists of the measurement of the electromotive force of a galvanic cell composed of two half-cells one of which is a reference half-cell of known composition; and the other an electrode immersed in the solution to be investigated.
1966 J. A. Elvidge & P. G. Sammes Course Mod. Techniques Org. Chem. (ed. 2) xxxiv. 284 Potentiometry makes possible the titration of very weak acids and bases.
1999 Water & Waste Treatm. Sept. 101/4 (advt.) Each [water] analyser uses one of a combination of technologies such as colorimetry, spectrophotometry, titrimetry, nephelometry, potentiometry, amperometry.
This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).
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n.1916