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 spectrometerI 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

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

1.	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 spectrometerI 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» 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.

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