Mass spectrometer
AssigneeMicromass UK Limited
InventorsRobert Harold Bateman, Kevin Giles, Steven Derek Pringle, Jason L. Wildgoose
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Abstract
A mass spectrometer is disclosed comprising an ion mobility spectrometer or separator and an ion guide arranged downstream of the ion mobility spectrometer or separator. A plurality of axial potential wells are created in the ion guide so that ions received from the ion mobility spectrometer or separator become confined in separate axial potential wells. The potential wells maintain the fidelity and/or composition of ions received from the ion mobility spectrometer or separator. The potential wells are translated along the length of the ion guide.
Claims3
An analysis apparatus, comprising:
- an ion mobility separator;
- an ion guide comprising a stack of electrodes disposed downstream of the ion mobility separator;
- a voltage source for applying one or more voltages to the stack of electrodes for generating an axial potential well and translating the axial potential well along the ion guide;
- and
- a TOF mass analyzer orthogonally disposed downstream of the ion guide.
Dependencies are inferred from the claim text.