The determination of free epsilon-amino groups in proteins.
D000596:Amino Acids; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002712:Chlorides; D002852:Chromatography, Ion Exchange; D002855:Chromatography, Thin Layer; D003094:Collagen; D003879:Dermatologic Agents; D066298:In Vitro Techniques; D007202:Indicators and Reagents; D011506:Proteins; D012754:Sharks; D013451:Sulfonic Acids
D000596:Amino Acids; D002712:Chlorides; D003879:Dermatologic Agents; D007202:Indicators and Reagents; D011506:Proteins; D013451:Sulfonic Acids; D003094:Collagen