Question

After passing through the pre-filter, ions are passed through which of the following?

(a) Quadrupole mass spectrometer

(b) Time of flight mass spectrometer

(c) Radiofrequency mass spectrometer

(d) Magnetic deflection mass spectrometer

I have been asked this question in an interview.

I would like to ask this question from Instrumentation of Ion Spectroscopy in chapter Electron and Ion Spectrometers of Analytical Instrumentation

Answer 1

Right answer is (a) Quadrupole mass spectrometer

Easy explanation: After passing through the pre-filter, ions are passed through quadrupole mass spectrometer. Pre-filter is a discriminator.