Fig. 5
From: Pushing the mass limit for intact launch and photoionization of large neutral biopolymers
Mass spectra of the polypeptide (5) in comparison between nanosecond and femtosecond desorption. Desorption conditions: short-pulse: λ = 355 nm, E = 3 mJ, τ = 7 ns (red line, foreground). Ultrashort pulse: λ = 343 nm, E = 15 µJ, τ = 292 fs (blue line, background). The different desorption conditions change the desorption efficiency but hardly influence the fragmentation pattern. For peak assignments, see Supplementary Figure 37
