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Native LESA MS of rat brain tissue. A) Sampling location: cerebellum. LESA extraction/ionisation solvent: 10 mM ammonium acetate, 5% MeOH. B) Sampling location: cerebellum. LESA extraction/ionisation solvent: 10 mM ammonium acetate, 0.125% C8E4. C) Sampling location: cerebral cortex. LESA extraction/ionisation solvent: 10 mM ammonium acetate, 0.125% C8E4. Molecular weights of assigned protein are listed. Colors correlate with protein charge states indicated in the mass spectra.
