Weighing a lyophilised peptide accurately is harder than it looks, and the errors are systematic rather than random — they push in one direction and quietly bias every…
Once a peptide is in solution, the clock starts. The practical question is how to draw from that solution over the working life of the experiment without degrading what remains.
Freeze-drying removes most of the water from a peptide preparation. It does not remove all of it…
Storage advice is easier to follow when you know what it is protecting against. Peptide degradation is not one process but several…
Most laboratories keep good records of experiments and poor records of materials. When a result looks wrong…
Peptides are supplied lyophilised because dry powder is far more stable than peptide in solution.
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