Trifluoroacetic AcidFluoroacetatesAcetic AnhydridesChromatography, High Pressure LiquidHydrochloric AcidChromatography, Reverse-PhaseSpectrometry, Mass, Electrospray IonizationSpectrophotometry, UltravioletMolecular StructureMass SpectrometrySolventsCyanogen BromideIndicators and ReagentsChromatography, LiquidPeptidesAmino AcidsChromophore-Assisted Light InactivationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationPeptide FragmentsAmino Acid Sequence