VIGNERON, M [Determination by potentiometric titration of the free amino nitrogen in some amino acids, peptides and proteins]. [electronic resource] - Annales pharmaceutiques francaises Jun 1960 - 404-23 p. digital Publication Type: Journal Article ISSN: 0003-4509 Subjects--Topical Terms: Amino Acids--chemistryNitrogen--chemistryPeptides--chemistryProteins--chemistry