Trifluoroacetic AcidFluoroacetatesSolventsAcetic AcidAcetic AnhydridesChromatography, High Pressure LiquidHydrochloric AcidChromatography, Reverse-PhaseSpectrometry, Mass, Electrospray IonizationMolecular StructureSpectrophotometry, UltravioletMass SpectrometryIndicators and ReagentsChromatography, LiquidCyanogen BromidePeptidesAmino AcidsAmino Acid SequenceSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationChromophore-Assisted Light InactivationMolecular Sequence DataPeptide Fragments