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公开(公告)号：EP4404239A2
公开(公告)日：2024-07-24
申请号：EP24179261.3
申请日：2021-03-30
申请人： Thermo Finnigan LLC
IPC分类号： H01J49/00
CPC分类号： G01N27/622 , H01J49/004
摘要： An ion mobility device includes a plurality of electrodes and a current source. The plurality of electrodes arranged along an axis extending from a first end to a second end. The plurality of electrodes configured to receive a gas flow at the second end and provide for an expansion of the gas flow from the second end to the first end such that a first gas velocity at the second end is greater than a second gas velocity at the first end. The current source is configured to apply a first potential to the plurality of electrodes to generate a first electric field during a trapping and equilibration time period; and apply a second potential to the electrodes during an ejection time period to generate a second electric field, the second electric field being greater than the first electric field.
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公开(公告)号：EP3528278A1
公开(公告)日：2019-08-21
申请号：EP19168726.8
申请日：2011-03-31
申请人： Thermo Finnigan LLC
摘要： A method of operating a particle detector is introduced, the method comprising the steps of receiving incident particles that represent at least one input signal in the particle detector, emitting electrons from a first dynode in response to receiving the incident particles, directing the emitted electrons to a plurality of additional dynodes arranged in a cascading relationship, measuring a detection current generated at an intermediate dynode, and regulating a gain to at elast one dynode positioned downstream of the intermediate dynode based on the measured detection current.
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公开(公告)号：EP3629363A1
公开(公告)日：2020-04-01
申请号：EP19210195.4
申请日：2014-04-23
申请人： Thermo Finnigan LLC
摘要： A method of making an ion optics component includes providing an electrically isolating substrate and machining away material of the substrate from at least one major surface thereof to form features of a first electrode sub-assembly. The formed features include a first surface for supporting integration of a first electrode body and a second surface for supporting integration of a second electrode body. Subsequent plating and masking steps result in the formation of a first electrode body on the first surface and a second electrode body on the second surface. A bridge is integrally formed in the electrically isolating material, so as to electrically isolate the first electrode body from the second electrode body.
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公开(公告)号：EP3054476B1
公开(公告)日：2020-03-25
申请号：EP16154127.1
申请日：2016-02-03
申请人： Thermo Finnigan LLC
IPC分类号： H01J49/06
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公开(公告)号：EP3486938A1
公开(公告)日：2019-05-22
申请号：EP18205279.5
申请日：2018-11-08
申请人： Thermo Finnigan LLC
摘要： An ion transport device of a mass spectrometer includes a plurality of pole rod arranged in first and second parallel rows and a controller. The controller is configured to apply voltages in a repeating voltage pattern to the pole rods of the first row and apply a common voltage to the pole rods of the second row thereby creating a plurality of potential wells capable of capturing ions, wherein each ion transport cell receives the same pattern of voltages; move the repeating voltage pattern along the pole rods of the first row to move captured ions within and between the plurality of ion transport cells along the ion transport device; and apply at least one ejection voltage to one or more electrodes to cause ions to be ejected from the ion transport device.
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公开(公告)号：EP4404239A3
公开(公告)日：2024-08-28
申请号：EP24179261.3
申请日：2021-03-30
申请人： Thermo Finnigan LLC
IPC分类号： G01N27/622 , H01J49/00
CPC分类号： G01N27/622 , H01J49/004 , G01N27/623
摘要： An ion mobility device includes a plurality of electrodes and a current source. The plurality of electrodes arranged along an axis extending from a first end to a second end. The plurality of electrodes configured to receive a gas flow at the second end and provide for an expansion of the gas flow from the second end to the first end such that a first gas velocity at the second end is greater than a second gas velocity at the first end. The current source is configured to apply a first potential to the plurality of electrodes to generate a first electric field during a trapping and equilibration time period; and apply a second potential to the electrodes during an ejection time period to generate a second electric field, the second electric field being greater than the first electric field.
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公开(公告)号：EP3889595A1
公开(公告)日：2021-10-06
申请号：EP21165873.7
申请日：2021-03-30
申请人： Thermo Finnigan LLC
IPC分类号： G01N27/622 , H01J49/00
摘要： An ion mobility device includes a plurality of electrodes and a current source. The plurality of electrodes arranged along an axis extending from a first end to a second end. The plurality of electrodes configured to receive a gas flow at the second end and provide for an expansion of the gas flow from the second end to the first end such that a first gas velocity at the second end is greater than a second gas velocity at the first end, for example wherein the plurality of electrodes forms a channel having a cross section that increases from the second end to the first end, wherein at least a subset of the plurality of electrodes create flow paths for the gas flow away from the channel or wherein at least a subset of the plurality of electrodes have a decreasing length or diameter going in the direction from the second end to the first end.The current source is configured to apply a first potential to the plurality of electrodes to generate a first electric field during a trapping and equilibration time period; and apply a second potential to the electrodes during an ejection time period to generate a second electric field, the second electric field being greater than the first electric field.
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公开(公告)号：EP3817030A1
公开(公告)日：2021-05-05
申请号：EP20204757.7
申请日：2020-10-29
申请人： Thermo Finnigan LLC
摘要： An electrospray ion source for a mass spectrometer comprises: (i) a plurality of N electrospray emitters within an ionization compartment, wherein N ≥ 2; (ii) a mixing chamber; (iii) a plurality of N inlets, each inlet comprising a conduit configured to receive charged particles from a respective one of the electrospray emitters and to emit the charged particles into the mixing chamber; (iv)an outlet port either facing or within an intermediate-vacuum compartment; and (v) a heater in thermal contact with at least a portion of the mixing chamber.
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公开(公告)号：EP2513947A1
公开(公告)日：2012-10-24
申请号：EP10799167.1
申请日：2010-12-13
申请人： Thermo Finnigan LLC
CPC分类号： H01J49/167 , H01J49/068
摘要： An electrospray ion source that comprises (a) an emitter capillary having (i) an internal bore for transporting a liquid sample, (ii) an electrode portion for providing a first applied electrical potential and (iii) an emitter tip for emitting charged particles generated from the liquid sample and (b) a counter electrode for providing a second applied electrical potential different from the first applied electrical potential is characterized by (c) a shield electrode disposed at least partially between the counter electrode and the emitter tip of the emitter capillary for providing a third applied electrical potential intermediate to the first and second applied electrical potentials, the shield electrode contoured in the form of a portion of an electrical equipotential surface formed, in the absence of the shield electrode, under application of the first and second applied electrical potentials to the electrode portion of the emitter capillary and to the counter electrode, respectively.
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公开(公告)号：EP3671810A1
公开(公告)日：2020-06-24
申请号：EP19219040.3
申请日：2019-12-20
申请人： Thermo Finnigan LLC
摘要： An ion separation device comprising a plurality of electrodes arranged in a two-dimensional grid, a gas supply configured to provide a gas flow along the first direction, and an ion inlet arranged to receive ions. The plurality of electrodes is configured to create one or more pseudopotential barriers of increasing magnitude along a first direction. A drag force is applied to the ions by the gas flow is opposed by a pseudopotential gradient of the plurality of electrodes.
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