Research library

Category: Analytical Science

Testing methods, certificates of analysis, purity, quantity, identity, and laboratory quality concepts.

Analytical Science/ Sep 2026

HPLC Purity Is Not the Same as Peptide Quantity: Why 99% Does Not Mean 10 mg

Why chromatographic purity and absolute peptide content are different measurements—and what a stronger analytical report should include.

Analytical Science/ Sep 2026

How to Read a Peptide Certificate of Analysis: Identity, Purity, Quantity and the Missing Tests

A practical guide to what a peptide COA can establish, what it cannot, and how identity, purity, quantity, endotoxin, sterility, and method validation fit together.