Separation of ions in mass spectrometer take place on the basis of which of the following?
A. Mass
B. Charge
C. Molecular weight
D. Mass to charge ratio
Answer:D
Separation of ions in mass spectrometer take place on the basis of which of the following?
A. Mass B. Charge C. Molecular weight D. Mass to charge ratio
Explanation: Mass spectrometer separates ions on the basis of mass to charge ratio i.e. m/z. In the spectrum of a pure compound, the molecular ion, if present, appears at the highest value of m/z (followed by ions containing heavier isotopes) and gives the molecular mass of the compound. Most of the ions are singly charged. Hence, the mass to charge ratio is equal to the mass.