September 10, 2026
HPLC vs LC-MS for Peptide Testing
Compare HPLC and LC-MS peptide testing, the information in chromatograms and mass spectra, and how to define a scope without confusing purity and identity.
Knowledge
Practical explanations of peptide testing, analytical methods and reporting.
September 10, 2026
Peptide Purity vs Identity: What Is the Difference?
Learn why peptide relative purity, identity evidence and net content answer different analytical questions, and how to read these results in context.
September 10, 2026
What Is a Peptide Certificate of Analysis?
Understand what a peptide COA documents, how to read sample references and method context, and why a report should not be treated as universal product proof.