HPLC vs Mass Spectrometry: Verifying Peptide Purity
HPLC and mass spectrometry are the two pillars of research peptide characterization. They answer different questions, and a COA that presents only one has answered only half of what matters. This article explains what each method measures, what each cannot, and how the two combine into a verifiable identity-and-purity claim. What is HPLC? High-performance liquid […]
Research Compound Purity Explained
What HPLC purity actually measures, what it does not, and how laboratories verify a 99% claim.