Hybrid mass spectrometer
AssigneeFinnigan Mat GmbH
InventorsGraham Cooks, Michael S. Story, Gerhard Jung, Peter Dobberstein
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Abstract
In a hybrid mass spectrometer, a high-energy collision chamber (8) is arranged in a field-free region (12) which, in the direction of travel of the ions, is located after the first stage (1 to 6). A lens arrangement (9) serves for decelerating daughter ions of different energies to a fixed energy, and preferably at the same time also for shaping the ion beam. Preferably, the hybrid mass spectrometer is of BEQQ configuration.
Claims11
A hybrid mass spectrometer for the mass analysis of daughter ions, comprising an ion source, a first electric and/or magnetic stage, a device for breaking the ions into daughter ions, a lens arrangement and a second stage with at least one analyzer, wherein a high-energy collision chamber (8) is provided, the high-energy collision chamber (8) is located in a field-free region (12) which, in the direction of travel of the ions, is located after the first stage (4, 6), and wherein the lens arrangement (9) is used for decelerating daughter ions of different energies to a fixed energy.
Dependencies are inferred from the claim text.