THERMODYNAMICS OF IONIZATION OF AMINO ACIDS PART 6, THE SECOND IONIZATION CONSTANTS OF SOME GLYCINE PEPTIDES

Thermodynamic functions for the ionization of the ammonium groups of glycylglycine, glycyl-DL-alanine, glycyl-DL-α-amino-n-butyric acid, and glycyl-L-leucine were obtained from e.m.f. measurements at temperatures from 5 to 50°C on cells without liquid junction.