Skip to main content
. 2011 Jul 11;108(30):12217-12222. doi: 10.1073/pnas.1105673108

Fig. 2.

Fig. 2.

Mass spectra of cytochrome c as a function of droplet pH. The mass spectra resulting from the nonresonant femtosecond laser-induced vaporization of aqueous cytochrome c dissolved in solution at pH 7 (A) and in solution at pH of approximately 3 (B) followed by capture and ionization in the electrospray plume at pH 7.06.