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Correlation between LC elution times for MS/MS identified peptides using an LTQ-FT platform versus their respective LC-MS aligned features from an ESI-TOF platform. Shown are 48 MS/MS identified peptides from the analysis of one mouse plasma glycopeptide isolate that could be mapped back onto the LC-MS data. Both instruments use a similar HPLC hardware set-up, and all 48 features were validated by visual examination of the original MS data files.
