Coulometry

Japanese: coulometry
Coulometry

When two or more metals coexist, electrolysis is performed by limiting the cathode potential to a potential at which only the desired metal precipitates.
[Coulometry]
A method of analysis based on Faraday's law of electrolysis, in which the amount of electricity required to quantitatively electrolyze a target substance is measured. When the target electrolysis reaction occurs with a current efficiency of essentially 100%, highly accurate analysis is possible.

*Some of the terminology explanations that mention "coulometry" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…2種以上の金属が共存する場合には,陰極電位を目的金属のみが析出するような電位に限定して電解する定電位電解法が用いられる。
[電量分析coulometry]
 電解におけるファラデーの法則に基づいて,目的とする物質を定量的に電解するのに要した電気量を測定して分析を行う方法。目的とする電解反応が実質的に100%の電流効率で起こるときには非常に精度の高い分析が可能である。…

※「coulometry」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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