Certificates of analysis
Every batch of every Tasman compound is tested before it is sold: HPLC for purity and mass spectrometry for identity. Request the certificate for any compound below and we email the PDF for the batch currently on the shelf.
Test methods
- HPLC
- High-performance liquid chromatography separates the sample into its components and measures what share of the total the target peptide makes up. That share is the purity figure, reported as a percentage of peak area.
- Mass spectrometry
- Mass spectrometry measures the molecular mass of the sample and confirms it matches the expected mass of the compound. It answers a different question from HPLC: not how pure the sample is, but whether it is the right molecule.
Request a certificate
FAQ
What is a certificate of analysis?
A certificate of analysis (CoA) is the test report for a specific batch. Ours states the compound, the HPLC purity result with its chromatogram, and the mass spectrometry result confirming identity.
How do I get the CoA for my order?
Use the request form on this page and include your order number. We send the certificate for the batch you received, by email, usually within one business day.
Why are batch numbers not shown on this page?
Batch numbers change as stock turns over, so they are printed inside each PDF rather than on the page. That way the certificate you receive always matches the batch it describes.
What is the difference between purity and identity?
Purity, measured by HPLC, is how much of the sample is the target peptide. Identity, confirmed by mass spectrometry, is whether that peptide is the correct molecule. A sample needs both results to be meaningful.