LC-MS molecular weight verification and identity confirmation for research peptides and synthetic research chemicals. Fast turnaround with documented COA.
Mislabeled or contaminated research peptides compromise experimental validity and create liability for distributors and researchers.
LC-MS/MS fragmentation can confirm amino acid sequence for smaller peptides.
Research peptide distributors who provide COAs with identity confirmation reduce liability from mislabeled products.
Full scan LC-MS reveals related substances and synthesis byproducts not visible by HPLC alone.
3–5 day turnaround is available for identity-only testing without HPLC purity.
What your identity COA includes.
Submitting takes less than 5 minutes. Most projects turn around in 5–10 business days from sample receipt.
Fill out our sample intake form — sample type, quantity, and timeline. We confirm turnaround and quote within one business day.
We'll send submission instructions and our San Diego shipping address. Most samples ship ambient or cold depending on stability requirements.
Results are delivered as a signed PDF COA within the agreed turnaround. Rush service (2–3 business days) available for urgent timelines.
Yes. As long as you provide the expected amino acid sequence, we can calculate the theoretical mass and compare it to the observed LC-MS result.
Identity testing confirms what a compound IS (correct molecular weight and structure). Purity testing measures how much of the correct compound is present vs. impurities. For a complete COA, you typically need both.
We focus on peptides and small proteins. For small molecule research chemicals, contact us to discuss whether our methods are appropriate for your compound.
Submit your samples and receive an ISO 17025 accreditation pending Certificate of Analysis. Results in 5–10 business days.