CMSP offers various LC-MS/MS techniques for the targeted analysis of peptides and proteins of interest. Absolute peptide abundance may be estimated using heavy-labeled standards using either a selected reaction monitoring (SRM) or parallel reaction monitoring (PRM). Using one of our triple quadrupole MS instruments, one or more precursor and transition masses may be monitored in a sensitive, quantitative and high-throughput SRM experiment. Need high mass accuracy or enhanced chromatographic separation to target your peptides?  CMSP offers PRM analyses using any of our high resolution analytical instruments.