Problem 9.5

a) What advantages do triple quadrupole mass spectrometers offer in addition to single quadrupole instruments?

b) Often, the “second quadrupole” of a triple quadrupole instrument is not a quadrupole. What is used instead and why?

c) Enumerate three tandem MS modes of triple quadrupole instruments.

d) The three tandem MS modes of the triple quadrupole instrument call for different settings to achieve them. Which part of the instrument is set to SCAN, SELECT, TRANSMIT?

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