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Reading a peptide HPLC trace — a field guide. Read →
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Research peptide COA
A COA should not be a decorative PDF. For research standards, it should tell the buyer what was tested, how identity was supported, how purity was calculated, and which limitations remain.
Lot identity and traceability
HPLC purity and method context
MS identity evidence
Storage, retest, and handling notes
A research peptide COA should help a lab decide whether the material is fit for a method, assay, calibration, or supplier qualification file.
A COA is only as strong as its method and supporting evidence. For sequence-sensitive work, buyers may need chromatograms, raw data, or orthogonal identity evidence.