Category
Quality & Testing
2 articles
Quality & Testing9 min read
Peptide Purity Standards: What HPLC, MS, and COA Data Really Mean for Researchers
A deep-dive into how peptide purity is measured — RP-HPLC peak area analysis, mass spectrometry confirmation, how to read a real COA, minimum acceptable purity thresholds by application, common impurities, endotoxin testing, and how to verify your vendor's analytical data.
May 29, 2026Read
Quality & Testing7 min read
Understanding COAs: How to Read a Certificate of Analysis
A practical guide to reading and verifying Certificate of Analysis documents — what each field means, which tests matter, and how to verify a COA is authentic.
May 7, 2026Read