Understanding Purity and COAs: What Most Suppliers Don’t Tell You
Understanding Purity and COAs What Most Suppliers Don’t Tell You Introduction When sourcing laboratory compounds, one of the most important—and most misunderstood—topics is purity and Certificates of Analysis (COAs). Many suppliers advertise “high purity” or “99%+ quality,” but what does that actually mean? And more importantly, how can you verify it? In this guide, we’ll […]