Net Peptide Content
Quantifies the actual active peptide weight in your sample by accounting for water, salts, counterions, and other non-peptide components. Essential for accurate dosing and formulation when the label weight alone is not enough.
Our Services
Analytical testing for research peptides.
Independent third-party results you can trust — validated methods, modern instrumentation, and scientific integrity.
Purity & Identity Confirmation
Our flagship service. Reversed-phase HPLC with UV detection determines peptide purity as a percentage and identifies impurities, while LC-MS with high-resolution accurate mass confirms the peptide's identity by comparing observed molecular weight to the expected value. Both tests are performed on the same sample and delivered on a single Certificate of Analysis.
Our Methodology
Every analysis at Sonic Laboratories follows rigorously validated methods. As an independent third-party lab, our results are unbiased and reproducible. From sample receipt to final report, each step is documented and reviewed to ensure scientific integrity and give you confidence in the data.