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Research

Testing

Method notes, handling guidance and literature summaries for research peptides. Written for people running in-vitro work, not for anyone else.

Testing

How to Read an HPLC Certificate of Analysis for a Research Peptide

Purity by area percent, retention time, observed versus theoretical mass, net peptide content. A certificate of analysis answers four questions if you know where to look, and it does not answer a fifth that people assume it does.

Sep 7, 2026 4 min read PCD Admin