Guides
- How to read a peptide COA
Match a certificate of analysis to the lot, read the method and units, and keep purity, identity and content apart.
- HPLC and mass spectrometry
What an HPLC area percentage reports, why it is not net peptide content, and what an expected-mass match adds.
- Peptide lot traceability
Build a receiving record around the lot number and tell batch documentation apart from metrological traceability.
How to use these guides
Each guide explains general analytical and record-keeping concepts and cites its sources. None of them certifies a product or lot: the specific report for your lot is the evidence. Anyone can consult the COA Library for documents on file, and the FAQ covers ordering and shipping. If a lot or report cannot be matched, contact us.