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US 9,870,911 B2Granted
Method and apparatus for processing ions
AssigneeDH Technologies Development Pte. Ltd.
InventorMircea Guna
Life of this patent
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Abstract
Methods and apparatus for operating a mass spectrometer are described. In various aspects, ions of a mass range of interest may be mass-selectively ejected from an accumulation ion trap into a multi-ion trap structure. Each ion trap of the multi-ion trap structure may be configured to confine ions within a portion of the mass range of interest. The ions may be simultaneously scanned from the ion traps of the multi-ion trap structure for concurrent detection at a detector component.
Claims15
A method for processing ions in a mass spectrometer system, comprising:
- a. confining a plurality of ions in an accumulation ion trap;
- b. sequentially transmitting a first group of ions of the plurality of ions from the accumulation ion trap into a first ion trap and a second group of ions of the plurality of ions from the accumulation ion trap into a second ion trap different from the first ion trap, wherein the first group of ions comprises ions having a mass range different than the second group of ions;
- c. confining the first group of ions in the first ion trap;
- d. confining the second group of ions in the second ion trap;
- and
- e. simultaneously transmitting ions out of the first ion trap and the second ion trap for detection by at least one detector component.
3 more elements
A mass spectrometer system, comprising:
- a. an ion source configured to generate a plurality of ions;
- b. an accumulation ion trap configured to trap the plurality of ions generated by the ion source;
- c. a first ion trap configured to receive a first group of ions of the plurality of ions transmitted by the accumulation ion trap;
- d. a second ion trap configured to receive a second group of ions of the plurality of ions transmitted by the accumulation ion trap;
- e. at least one detector for detecting ions transmitted from at least one of the first and second ion traps;
- and
- f. a controller in electrical communication with one or more power supplies to apply voltages to the accumulation ion trap and the first and second ion traps to:
- i) sequentially transmit the first group of ions from the accumulation ion trap into the first ion trap and the second group of ions from the multipole ion trap into the second ion trap, wherein the first group of ions comprises ions having a mass range different than the second group of ions;
- and
- ii) simultaneously transmit ions out of the first ion trap and the second ion trap for detection by the at least one detector.
7 more elements
Dependencies are inferred from the claim text.