Glossary
Mass spectrometry (MS)
A technique that measures molecular mass. It confirms a peptide's identity by comparing the observed mass with the theoretical mass.
Further reading
- HPLC vs mass spectrometry: what each test tells you about a peptide
HPLC measures purity, mass spectrometry confirms identity. Why a CoA needs both, what each cannot detect and how to read the results.
- How to read a peptide Certificate of Analysis
What each line of a peptide CoA means, which checks matter most, and the red flags that suggest a document is decoration rather than evidence.
- How research peptides are made and tested
From solid-phase synthesis to preparative HPLC, freeze-drying and quality control: what happens between an amino acid sequence and a vial.
- Lyophilised vials vs pre-filled pens: comparing research peptide formats
How freeze-dried vials and pre-filled solution pens differ for laboratory research: stability, concentration labelling, price per mg and what to check on a CoA.
See also
For laboratory research only. Nothing on peptide.wiki is medical advice. The compounds described are not for human or veterinary use, and research-grade material is not a medicine.