Figure 4From: Benzimidazole, coumrindione and flavone derivatives as alternate UV laser desorption ionization (LDI) matrices for peptides analysis Sensitivity measurement mass spectra of compound 29 with different concentration of [ Glu1]- fibrinopeptide B Human recorded in reflector mode by averaging 600 laser shots with smart beam ( 355 nm) on MALDI- TOF- MS ( A) 1000 ( B) 100 ( C) 50 ( D) 25 ( E) 12. 5 ( F) 10 pM. Back to article page