Enhanced Diagnostic Tools
The chemical stability of peptides is very dependent on amino acid composition and sequence. Lyophilized peptides are generally more stable than their counterparts in solution. The following are potential degradation pathways for peptides:
The general ways to prevent or minimize peptide degradation is to store the peptide in lyophilized form at -20°C or preferably at -80°C (if available). If the peptide is in solution, freeze-thaw cycles should be avoided by freezing individual aliquots. Exposure to pH>8 should be avoided. However, if it is necessary to dissolve peptides at pH>8, its exposure should be minimized and solutions should be chilled. Finally, prolonged exposure of lyophilized peptides and solutions (especially at high pH) to atmospheric oxygen should be minimized.
If you have a query regarding any of our products or services,
please don't hesitate to submit your question below. A member of our support team
will review and answer your question as quickly as possible.