An HPLC purity percentage describes the relative detector response assigned to a compound under a specific chromatographic method. Learn what this number can demonstrate, what can influence it, and which complementary tests are needed for stronger analytical confidence.
Learning how to read a research compound COA is essential when reviewing the identity, purity and batch documentation of a laboratory material. A Certificate of Analysis should connect a specific batch to clearly reported analytical results rather than simply display a purity percentage. HPLC, mass spectrometry and NMR provide different kinds of information. No single […]