Quality & verification
Quality & Testing at OSMOSE Research
Every OSMOSE Research peptide is validated by reverse-phase HPLC (≥99% purity), confirmed by mass spectrometry, and tested for endotoxins (LAL) and sterility. Each batch ships with a Certificate of Analysis (CoA) documenting these results. Synthesis follows GMP standards in the European Union. For in vitro research use only.
Our 5-step quality process
Reverse-phase HPLC
Purity is measured by RP-HPLC against reference standards; we release peptides at ≥99% purity with the chromatogram documented per batch.
Mass spectrometry (MS)
ESI-MS or MALDI-TOF confirms the exact molecular weight and peptide identity for every batch.
Endotoxin testing (LAL)
The Limulus Amebocyte Lysate assay verifies endotoxin levels below 0.5 EU/mg, critical for cell-based assays.
Sterility validation
Lyophilised peptides are validated for sterility before release and shipped in insulated cold-chain packaging.
Documented cold chain
Storage and transport conditions are documented so the peptide reaches your lab stable and ready to reconstitute.
What's in every Certificate of Analysis
A complete CoA lets you verify quality before research use. Each OSMOSE CoA documents the parameters below for the exact batch you receive.
- HPLC purity value with chromatogram
- Mass spectrometry identity confirmation
- Endotoxin (LAL) result below 0.5 EU/mg
- Sterility validation
- Batch / lot number for traceability
Standards we follow
- GMP-standard synthesis in the European Union
- ≥99% HPLC purity release threshold
- Per-batch documentation and traceability
- Research-use-only labelling and compliant information
- Cold-chain insulated shipping across the EU
Frequently asked questions
How do you verify peptide purity?
Purity is measured by reverse-phase HPLC against reference standards and confirmed by mass spectrometry. We release peptides at ≥99% purity, with the result documented on the per-batch Certificate of Analysis.
What is endotoxin (LAL) testing?
The LAL assay detects bacterial endotoxins that can confound cell-based assays. OSMOSE peptides are tested below 0.5 EU/mg, ensuring they are free of these interferents.
Do I get a CoA with my order?
Yes. Each batch ships with a Certificate of Analysis documenting HPLC purity, mass spectrometry identity, endotoxin (LAL) result and sterility validation, so you can verify quality before research use.
How should peptides be stored?
Lyophilised peptides should be stored at -20°C. After reconstitution, store at 2-8°C and use within the documented stability window. They ship in insulated cold-chain packaging.