Multiple Choice
The positive charge on proteins in electrospray ionization mass spectrometry is the result of
A) protons fired at the gas-phase protein molecules.
B) protonated side chains of Asp and Glu residues.
C) protonated side chains of Arg and Lys residues.
D) a high pH.
E) electrons fired at the gas-phase protein molecules.
Correct Answer:
Verified
Correct Answer:
Verified
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