Mass spectrometers having real time ion isolation signal generators
Assignee1st Detect Corporation
InventorsDavid Rafferty, Louis Johnson
Life of this patent
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Abstract
Apparatuses, systems, and methods for performing mass analysis are disclosed. One such apparatus may include an ion trap device for use in a mass analysis system. The ion trap device may comprise an ion trap and a signal generator for applying an excitation signal to the ion trap. The signal generator may include a plurality of oscillators each configured to selectively generate a corresponding sinusoid signal to be selectively combined to form the excitation signal.
Claims22
An ion trap device for use in a mass analysis system, the ion trap device comprising:
- an ion trap;
- and
- a signal generator for applying an excitation signal to the ion trap, wherein the signal generator includes a plurality of oscillators each configured to selectively generate a corresponding sinusoid signal to be selectively combined to form the excitation signal.
A mass analysis system, comprising:
- an ion trap device, including:
- an ion trap;
- a signal generator for applying an excitation signal to the ion trap, wherein the signal generator includes a plurality of oscillators each configured to selectively generate a corresponding sinusoid signal to be selectively combined to form the excitation signal;
- and
- an ion detector.
A method for generating an excitation signal to eject a particular ion from an ion trap, comprising:
- generating a plurality of sinusoid signals that include at least one frequency component corresponding to the particular ion to be ejected from the ion trap;
- summing the plurality of sinusoid signals to form a digital waveform;
- converting the digital waveform to the excitation signal;
- and
- applying the excitation signal to the ion trap, such that the particular ion will be ejected.
Dependencies are inferred from the claim text.