Tool
COA Detective
A certificate of analysis looks authoritative and often proves almost nothing. Examine each field of this teaching specimen — what it establishes, what it cannot, and what to check next — then see the assessment.
Teaching specimen. Every identifier below is invented for this explainer. It is not a certificate for a real product, lot or laboratory.
0/11 fields examined
Certificate of analysis
Specimen · teaching exercise
Start with the load-bearing fields
Work in the order a professional would: lot, laboratory, sample ID, date. If those cannot be resolved, the percentages are decoration. Click a field on the certificate to begin.
Where to go next
- The full written guide: How to read a peptide certificate of analysis
- What the two main methods actually measure: HPLC vs LC-MS
- Commission your own testing: the laboratory directory