PEPTIDEREPORT

Free tool

COA Analyzer

Check off the elements present on your Certificate of Analysis and get an instant quality score out of 100. This checklist-based tool covers identity testing, purity testing, documentation, and sign-off — no upload, no email, no signup. Use it to spot gaps before trusting a COA.

Identity Testing / 30

Methods that confirm the substance is what the label claims.

0 / 30

HPLC identity test (retention time match) 10 pts

Mass spectrometry (MS) identity confirmation 10 pts

Melting point determination 5 pts

NMR or IR spectroscopy identity test 5 pts

Purity Testing / 35

Quantitative measures of how pure the sample is.

0 / 35

HPLC purity percentage reported (e.g. ≥ 98%) 12 pts

Residual solvents tested (e.g. ICH Q3C) 8 pts

Water content / moisture (Karl Fischer) 7 pts

Heavy metals or elemental impurities tested 4 pts

Amino acid analysis or peptide content 4 pts

Documentation & Traceability / 20

Batch identifiers, dates, and lab accountability.

0 / 20

Batch or lot number printed on COA 5 pts

Test date / date of analysis 4 pts

Expiry or retest date 4 pts

Lab name clearly identified 4 pts

Lab physical address listed 3 pts

Sign-off & Authenticity / 15

Evidence that a qualified person reviewed and approved the results.

0 / 15

Analyst or QC scientist signature 5 pts

QA reviewer signature / second approval 5 pts

Lab accreditation reference (e.g. ISO 17025) 5 pts

COA Quality Score0 / 100

Check the boxes above to calculate your COA quality score.

This tool runs entirely in your browser. Nothing is uploaded, stored on a server, or emailed. Use the Print button to save or share your results.