Isabel Brandariz

TL;DR: In this article, the authors compared several reported procedures for calibrating glass electrodes in proton concentration and gave some recommendations for non-experts, which can be classified into two broad categories: those based on direct potential difference measurements of solutions of known proton concentrations and those that use one or several pH standards to calibrate the electrode.

TL;DR: Values for the liquid junction potential as a function of ionic strength and the logarithm of the activity coefficient for the proton in various saline media are obtained and determined using Pitzer equations.

TL;DR: In this article, the protonation constants of acetic, chloroacetic, and phenylacetic acids in KNO3 at 25 °C at several ionic strengths were determined by potentiometry with a glass electrode.

TL;DR: In this article, the experimental pKs of the amino acid alpha-alanine in NaCl at 25 degrees and different ionic strengths were obtained with a commercial glass electrode and the results analysed through three models: two directly based on the Pitzer and Scatchard approaches to the ion specific interaction theory and the other based on a simpler modification of the Debye-Huckel equation.

TL;DR: In this article, the stoichiometric acid-base equilibrium constants for the amino acids α-alanine, γ-aminobutyric acid, and ϵ-aminocaproic acid have been determined in KNO3 aqueous solutions at different ionic strengths and 25 °C.