Send your peptide name, sample count, and the tests you need. We return a fixed-price quote, usually within one business day.
HPLC tells you how pure your peptide is. Mass spectrometry tells you what your peptide is. For complete quality assurance, most researchers need both.
High-Performance Liquid Chromatography
ESI-MS / LC-MS/MS / MALDI-TOF
Start with HPLC purity testing to confirm the claimed purity percentage. Add mass spectrometry if you also need identity confirmation or suspect the wrong peptide was supplied.
Use mass spectrometry (ESI-MS) for molecular weight confirmation, or LC-MS/MS for full sequence verification when absolute identity confirmation is required.
Use both HPLC and mass spectrometry (or combined LC-MS/MS) for the most comprehensive peptide characterization. This is our recommended approach for critical research applications.
Use HPLC to track purity changes over time, supplemented with mass spectrometry at key timepoints to identify specific degradation products (oxidation, deamidation, etc.).
LC-MS/MS combines liquid chromatography separation with tandem mass spectrometry in a single instrument run. This gives you purity data, molecular weight confirmation, and sequence information simultaneously, making it the most cost-effective approach for comprehensive peptide characterization.
Single sample submission
Types of data (purity + identity)
Day turnaround
Our scientists will recommend the right analytical approach for your specific peptide and research goals. Get expert guidance with your free quote.