ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
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PH* values of the standard succinate buffer solution in the 50 mass % ethanol-water solvent

E. Kozáková, B. Cséfalvayová, and J. Zajacová

Department of Analytical Chemistry, Faculty of Natural Sciences, Komenský University, 842 15Bratislava


Abstract: The voltage of a cell without liquid junction consisting of hydrogen electrode, silver/silver chloride reference electrode, and standard succinate buffer solution in the 50 mass % ethanol—water solvent was measured potentiometrically. The measured values of EMF were used for calculating the conventional paH. values of the succinate buffer solution. By means of these values the calibration of pH-meter was performed. Furthermore, different buffer solutions and standards in the 50 mass % ethanol—water solvent were used as electrolytes in some types of Potentiometrie cells the voltage of which was measured in the working pH* scale. The calibration of the measured cell with respect to standard in the mixed solvent was compared with the calibration with respect to the pH standard in water. The pH* values from the working scales were confronted with the pH* values obtained from the concentration pH* scale.

Full paper in Portable Document Format: 363a345.pdf


Chemical Papers 36 (3) 345–351 (1982)

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