Laboratory grade peptides are typically evaluated through a combination of analytical and documentation checks designed to confirm identity, purity, and traceability for research use.
Common quality control elements
- Identity confirmation: Usually supported by mass spectrometry and sequence verification data.
- Purity assessment: Commonly reported by HPLC, with the chromatogram and integration details available for review.
- Batch documentation: A Certificate of Analysis (COA) should list the lot number, test results, and release criteria used.
- Traceability: Records should link the material to its production batch and analytical results.
- Handling and storage notes: Documentation may include recommended conditions to help preserve sample integrity during laboratory use.
For laboratory purchasers, the most useful approach is to review the COA alongside the testing methods used, the reported purity threshold, and whether the data are consistent across the batch. These materials are intended for research use only and are not intended for human consumption.