| 释义 |
couˈlometry
[f. prec.: see -metry.]
The measurement of the number of coulombs used in an electrolysis; chemical analysis by means of this. So ˌcouloˈmetric a.
1945Jrnl. Amer. Chem. Soc. LXVII. 1916 (heading) Coulometric analysis. Ibid. 1917/1 The great advantage of the mercury cathode for coulometric analyses. Ibid. 1920/1 Coulometric determination of copper. 1949Analyt. Chem. XXI. 73/2 It is apparent..that coulometric methods lend themselves to instrumentation and automatic operation. 1958G. H. Ayres Quant. Chem. Analysis xxxix. 555 A relatively new technique in quantitative analysis is coulometry, the generation of reagents by electrolysis. 1964Oceanogr. & Marine Biol. II. 104 Coulometric and titrimetric analysis differ essentially in the means by which the reagent (silver) is incorporated. Ibid., Coulometry may also be practised using a visual indicator. |