Mass Spectrometry (MS)

An analytical technique that measures the mass-to-charge ratio of ions to identify and characterize molecules. In peptide research, mass spectrometry confirms the molecular weight and structural identity of a compound, ensuring it matches the expected molecular formula. Common variants used for peptides include MALDI-TOF and ESI-MS. Mass spectrometry data on a COA provides definitive confirmation that the synthesized peptide has the correct molecular structure.