Peptide Degradation via Fenton Redox Cycling in Ascorbic Acid
How copper and iron trace metals catalyze Fenton and Haber-Weiss redox cycling degradation of reconstituted peptides with ascorbic acid excipient from metal leaching.
Tag: metal contamination
Peptide Metal-Bridged Dimer Formation From Glass Vials
Learn how trace copper and zinc ions leached from glass vials and steel needles cause peptide dimer formation via histidine-cysteine crosslinking during storage.
Peptide Histidine Metal Coordination & Storage Degradation
Learn how trace metals from needles, vials, and water coordinate with peptide histidine residues, causing site-specific degradation and how chelators prevent it.