Improving the Quadrupole to Ion Mobility Region in a Digital Quadrupole/Ion Mobility/Orbitrap Mass Spectrometer
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A quadrupole/drift tube ion mobility/Orbitrap instrument requires pumping from atmosphere to 10-5 Torr in the quadrupole analyzer region, back to 1 Torr for the drift tube, and a return to 10-5 Torr for the Orbitrap high vacuum region. The Orbitrap high vacuum... ...
