Standard enthalpies of formation for L-tyrosine, DL-norleucine, DL-tryptophan, DL-alpha-alanyl-DL-norleucine, and products of their dissociation in an aqueous solution

摘要

Enthalpies of dissolution are determined for a series of crystal amino acids (L-tyrosine, DL-norleucine, and DL-tryptophan) and a DL-alpha-alanyl-DL-norleucine dipeptide in aqueous solutions of KOH at 298.15 K by means of direct calorimetry. Standard enthalpies of formation are determined for bioligands and products of their dissociation.