Send your peptide name, sample count, and the tests you need. We return a fixed-price quote, usually within one business day.
ACS Peptide Testing Labs provides professional peptide and protein analysis services with detailed molecular characterization using state-of-the-art mass spectrometry technologies including LC-MS/MS and ESI-MS. As an independent peptides testing laboratory, we confirm molecular weight, verify peptide identity, and identify post-translational modifications with the highest level of accuracy and reliability.
High-resolution mass spectrometry for precise molecular weight measurement with accuracy better than 1 Da for peptides up to 15 kDa.
Tandem MS/MS fragmentation analysis to verify peptide identity and detect structural errors or modifications.
Detection and characterization of post-translational modifications including phosphorylation, acetylation, and glycosylation.
Determination of disulfide bond connectivity in peptides containing multiple cysteine residues using enzymatic digestion and MS.
Liquid chromatography tandem mass spectrometry for sequence verification and impurity identification
Validated analytical methods following ICH and USP guidance for all peptide testing procedures
Electrospray ionization for high-resolution mass analysis of intact peptides
Accurate quantification methods to determine peptide concentration and content
Submit your peptides for precise molecular weight determination and structural characterization using advanced mass spectrometry.