Understanding COAs / PDF
How to Read a Certificate of Analysis
Not every Certificate of Analysis tells the same story. This practical guide explains how to review lot numbers, laboratory and report identifiers, HPLC purity, mass-spectrometry identity, net-content results, and quality attributes that require separate testing. Learn what a COA can confirm, what it cannot establish, and which red flags deserve a closer look. Provided for educational and informational purposes in a laboratory research context only. No medical, dosage, administration, or clinical guidance is included.
