HPLC Purity (RP-C18, UV-DAD)
Reverse-phase gradient elution adapted from USP <621>. Reports area-percent purity with full chromatogram and integration table.
Peptide Testing Laboratory
Independent peptide testing for research suppliers, formulators, and labs.
SteriGenix is a US-based contract analytical laboratory specializing in research-grade peptides and small-molecule compounds. Every batch we analyze is logged under a unique identifier, run on validated instrumentation, and returned with a Certificate of Analysis anyone can verify on the public portal.
What We Test
A complete identity, purity, and safety panel.
LC-MS Identity Confirmation
Electrospray (ESI) in positive and negative mode per USP <736>. Mass accuracy ±0.01 Da against the theoretical monoisotopic mass.
Bacterial Endotoxin (LAL)
Kinetic chromogenic LAL per USP <85>. Detection to 0.005 EU/mL using Charles River Endosafe.
Net Content & Fill Verification
Gravimetric and volumetric fill checks against label claim, including assay-corrected active content.
Karl Fischer Water Content
Coulometric titration per USP <921> Method 1c. Critical for lyophilized peptide stability.
Residual Solvents (HS-GC-MS)
Headspace GC-MS per USP <467> for ICH Q3C Class 1, 2, and 3 solvents.
Why It Matters
Independent testing closes the trust gap.
The research-compound supply chain has historically run on supplier-issued certificates with no independent verification path. Forged COAs, copy-pasted chromatograms, and conflicts of interest are common — and buyers have no way to tell a real document from a generated one.
A SteriGenix peptide test is the alternative. We do not manufacture, distribute, or sell the compounds we test. Every assay is run, reviewed, and signed by a third party with no commercial interest in the result.
Each report links to retained chromatograms, mass spectra, and integration files held for a minimum of three years. Anyone can paste the batch identifier into the public Verify portal and confirm the certificate's authenticity.
The result: research suppliers, formulators, and downstream buyers can stop arguing about whose word to take and start pointing at the same data set.
Process
From sample to verified COA in 3–5 business days.
01
Request a number
Email cs@sterigenixanalytical.com or use the Contact form to receive a submission number and shipping label.
02
Ship the sample
5–10 mg of dry powder is sufficient for HPLC + LC-MS. 25 mg recommended for full panels with LAL and KF.
03
Analysis
Standard turnaround 5 business days from receipt; rush 3-day service available at +50%.
04
Verified COA
Signed PDF delivered with raw chromatograms; batch ID is publicly verifiable on /verify.
Submit a peptide for analysis.
We respond within one business day with a submission number, current pricing, and preferred shipping protocol for your compound class.
Contact the Lab