quinhydrone


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Related to quinhydrone: quinhydrone electrode

quin·hy·drone

(kwin-hī'drōn),
A mixture of equimolecular quantities of quinone and hydroquinone; used in pH determinations (that is, via a q. electrode).
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References in periodicals archive ?
Chloride concentrations were determined by potentiometric titration with Ag[NO.sub.3] using a quinhydrone half-cell and Ag/AgCl electrode (Piper 1942).
All electrodes were checked and calibrated using quinhydrone redox/pH standards at pH 4 and 7 (Bohn 1971; Reddy and Patrick 1975; Patrick et al.