Related Experiment Video
Updated: Jun 28, 2026

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds
Published on: September 26, 2017
Standard pH values for standardization of potentiometric sensors in 10% (w/w) acetonitrile-water mixtures
J Barbosa1, S Butí, V Sanz-Nebot
1Department of Analytical Chemistry, University of Barcelona, Diagonal, 647.08028 Barcelona, Spain.
Abstract:
Reference value standards, pH(s) in 10% (w/w) acetonitrile-water solvent mixtures for 11 reference buffer solutions have been determined from reversible emf measurements of the cell Pt/Ag/AgCl/standard buffer + KCl, in acetonitrile-water/glass electrode, at 298.15 K. Values of ionization constants, required for above calculations, have been determined from reversible emf measurements of the cell Pt/Ag/AgCl/HA + A + KCl, in acetonitrile-water/glass electrode, in the same solvent composition and temperature.
More Related Videos
Related Concept Videos
Potentiometry: Overview
Titration in Nonaqueous Solvents
Potentiometry: Types of Electrodes
The Standard Hydrogen Electrode (SHE) is a widely used reference electrode that maintains zero potential across all temperatures. However, its need for a continuous hydrogen gas supply renders it impractical for everyday use.
An alternative to SHE is the Saturated Calomel Electrode (SCE). This electrode features an...
Titration Calculations: Weak Acid - Strong Base
For the titration of 25.00 mL of 0.100 M CH3CO2H with 0.100 M NaOH, the reaction can be represented as:
Water: A Bronsted-Lowry Acid and Base
Titration of a Weak Acid with a Strong Base
