Peptide identity testing establishes that a sample corresponds to the declared molecular structure. It is a documentary and analytical process that produces a Certificate of Analysis (COA), not a clinical outcome.
Common analytical approaches
- Liquid chromatography–mass spectrometry (LC-MS) for molecular weight confirmation.
- High-performance liquid chromatography (HPLC) for peak separation and purity measurement.
- Reference-standard comparison to expected retention times and fragmentation patterns.
What identity testing does not do
A confirmed identity result documents molecular characterization only. It does not establish clinical performance, safety, or suitability for any human use.
