Complete Guide to Peptide Reconstitution for Researchers
Complete Guide to Peptide Reconstitution for Researchers
Proper reconstitution is critical for maintaining the integrity and accuracy of research with peptides. This guide covers solvent selection, pressure equalisation, mixing technique, and storage after reconstitution.
Solvent Selection
Most research peptides can be reconstituted in bacteriostatic water (0.9% benzyl alcohol). Hydrophobic peptides that resist dissolution in water may require 0.6% acetic acid solution. Always consult the peptide's technical data sheet for specific recommendations.
Pressure Equalisation
Before adding solvent, insert a sterile needle half-filled with air into the rubber stopper to equalise pressure. This prevents solution loss due to positive or negative pressure differentials in the vial.
Mixing Technique
Add the solvent slowly against the side of the vial, never directly onto the lyophilised peptide cake. Gently swirl — never vortex or shake vigorously — until fully dissolved. Some peptides may take several minutes to dissolve completely.
