The Disguised Difference · Research quality
Peptide Chain of Custody: From Sample to Report
Chain of custody connects a submitted sample with its identifiers, handling and transfer records, laboratory receipt and resulting report. Disguised Alpha uses chain-of-custody testing in its quality approach. Researchers should review the available records for the specific sample and batch they need to evaluate.
A traceable sequence
The useful sequence begins with identifying the sample and the batch it represents, then records its movement to the laboratory and links receipt to the analytical report. This makes it possible to ask who selected the sample, what was submitted and which report belongs to it.
What the record should resolve
A review should be able to reconcile supplier batch information with laboratory sample or accession identifiers. Supporting documents may include a submission record, shipment reference and receipt information. The exact available records depend on the submission; a COA alone may not contain the entire history.
Custody and analysis answer different questions
Custody records address traceability. Analytical methods address the properties measured. A strong review considers both, and also checks how the sample was chosen. An intact custody trail does not by itself establish that a single sample represents every unit in a production run.
Common questions
Is chain of custody a separate purity test?
No. It is a documentation trail associated with sample handling and identity. Purity is measured through an analytical method.
Does a tracking number prove a complete chain of custody?
No. Tracking supports one part of the shipment history. It should be considered with sample identification, submission and laboratory receipt records.