On the Primary Ionization Mechanism(s) in Matrix-Assisted Laser Desorption Ionization
Figure 5
MALDI mass spectra of Human Serum Albumin obtained by (a) sinapinic acid only, (b) sinapinic acid with 0.1% of formic acid, (c) sinapinic acid with 0.1% of acetic acid, and (d) sinapinic acid with 0.1% of trifluoroacetic acid.