Find Your Batch Certificate

An identity section states which compound the tested material was found to be, and the method used to establish it. Read it alongside the batch ID so you know which material the finding describes.

A purity figure is a measurement produced by a stated method on a stated sample. It is meaningful only together with that method, the sample reference, and the batch it came from. A purity number quoted without them describes nothing in particular.

Peptide content describes how much of the labelled compound the tested material contained, as distinct from purity. The two answer different questions and are reported separately.

Certificates name the analytical method behind each line, commonly HPLC for purity and LC-MS for identity. Different methods answer different questions, so the method reference is part of the result, not a footnote.

A chromatogram is the raw output of a separation method: peaks plotted against retention time. Reading it depends on the method, sample preparation, detector and integration settings, all of which should be stated on the document that carries it.

The batch ID is the link between a physical vial and a document. If the ID on the certificate does not match the ID on your vial character for character, the document describes a different batch and does not apply to what you are holding.

A report date fixes when the analysis was reported. Records are kept after they are replaced rather than deleted, marked Archived or Superseded, so an older document stays available for the batch it describes.

Each record names the party that issued it. An issuer may be an outside analytical laboratory or the supplier of the material. These are not equivalent, so the issuer is shown as recorded and is never described as independent unless the document itself establishes that.