Figure 3From: Benzimidazole, coumrindione and flavone derivatives as alternate UV laser desorption ionization (LDI) matrices for peptides analysis MALDI mass spectra of a peptide bradykinin ( 25 pM), recorded in reflector mode by averaging 600 laser shots with smart beam ( 355 nm) on MALDI- TOF- MS by applying different compounds as a matrix ( A) 6 ( B) 25 ( C) 29. Back to article page