Research library › Testing & certificates
Topic
Testing & certificates
How a certificate of analysis is produced, what each test proves, and how to check one against the vial in front of you.
01
How to read a certificate of analysis
A certificate only counts as evidence if it is the certificate for the vial you received. The five checks, the three dates that get confused, and what a COA cannot tell you.
02What a peptide analysis actually measures
Purity and identity are different questions. What HPLC measures, what the missing percentage is made of, how identity is established by retention time, and where mass spectrometry fits.
03What HPLC purity actually measures
A purity percentage is not what most people assume. What the number includes, what it quietly excludes, and how to read the chromatogram.
04How identity is confirmed
Purity and identity are different questions. This is how a laboratory establishes that the material is what the label says.
Research use only. Everything in this library is written for a laboratory and research-supply context. Nothing here is medical advice, and nothing here describes administration to humans or animals. Elite Bio Labs supplies materials for in-vitro and laboratory research only.