Why documentation matters
Research documentation helps laboratories understand what was tested, which sample or lot was referenced, the analytical method used and the result that was reported. It should be assessed as a record of a particular analysis rather than as a generic quality statement.
Certificate of Analysis (COA)
A COA can record sample identity, lot or sample codes, test methods and reported analytical results. The scope varies by laboratory, so the document itself should be checked rather than relying on a generic purity statement.
Check identity
Look for the material name, sample reference and any lot or batch identifier shown on the document.
Check scope
Confirm which tests were actually performed and avoid assuming a result covers analyses that are not listed.
HPLC
High-performance liquid chromatography separates components in a sample. Under an appropriate method, chromatographic data can contribute to composition or purity assessment.
LC-MS
Liquid chromatography–mass spectrometry combines separation with mass analysis and can support identity assessment. Results remain method- and sample-specific.
Batch traceability
Useful documentation should make it possible to understand which sample was analysed and how that record relates to the material being referenced. A document for one presentation or sample should not automatically be treated as evidence for a different one.
Our documentation policy
Peptrion Labs does not publish invented batch numbers, purity percentages, laboratory names or analytical results. Material actually available for review is published through the Documentation hub.