Which is true for mass spectrometry of proteins?
I MALDI and electrospray are major methods for introducing proteins into the gas phase.
II The equation is used to determine the number of H⁺ bound to a protein from the mass spectrum.
III Once n is known;the molecular mass of the protein is calculated,molecular mass = nm_n.
IV Electron-transfer dissociation is a mass spectrometry technique to sequence proteins.

Question

Which is true for mass spectrometry of proteins?
I MALDI and electrospray are major methods for introducing proteins into the gas phase.
II The equation

is used to determine the number of H⁺ bound to a protein from the mass spectrum.
III Once n is known;the molecular mass of the protein is calculated,molecular mass = nm_n.
IV Electron-transfer dissociation is a mass spectrometry technique to sequence proteins.

Quizplus · Accepted Answer

The Answer is A

Which Is True for Mass Spectrometry of Proteins