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Related to quinhydrone: quinhydrone electrode


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 ?
Each kit contains one pint of pH 7 buffer, one pint of pH 4 buffer, 20 grams of quinhydrone, 3 measuring cups and 75 wood applicators; enough material for 30 two-point calibrations.
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.