COA Reading Room

The document reading room

Read a peptide certificate of analysis with confidence.

Work through a certificate of analysis one field at a time, connect it to the sample in front of you, and write down the questions the report leaves open.

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Fictional teaching example

Certificate of analysis

Sample identifierDEMO-014
Identity methodLC–MS
Main peak area98.4 area%
Reported amount4.7 mg / vial

Each field answers a different question. Start with the sample, method and units.

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Fictional peptide COA review exercise

Practice reading a peptide certificate of analysis: trace three vial labels to a fictional report, compare each result with its own criterion, and document what remains open.

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COA review checklist

Review the identifiers, methods and limits in a certificate. Export a checklist of what remains unresolved.

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