ArgonShield™ can maintain the stability of peptides having Cys, Trp, or Met residues even after 6 months of storage. Below, the stability of a peptide containing oxidation sensitive residues packaged with ArgonShield™ technology is demonstrated by HPLC analysis.
Black Peak: Peptide after synthesis and purification
Red Peak: Peptide without ArgonShield™ protection after 6 months of storage (smaller peaks denote new oxidized peptide species)
Green Peak: Peptides with ArgonShield™ protection after 6 months of storage
ArgonShield™ prevents peptide oxidization after 6 months of storage.