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    Ion trap with ring-shaped ion storage cell and mass spectrometer
    1.
    发明授权
    Ion trap with ring-shaped ion storage cell and mass spectrometer 有权

    公开(公告)号：US11935734B2

    公开(公告)日：2024-03-19

    申请号：US17765690

    申请日：2020-09-30

    Applicant: Leybold GmbH

    Inventor： Michel Aliman ,  Yessica Brachthauser ,  Alexander Laue ,  Anthony Hin Yiu Chung

    IPC: H01J49/42

    CPC classification number: H01J49/424

    Abstract: The invention concerns an ion trap, including a first ring-shaped end cap electrode and a second ring-shaped end cap electrode, between which is formed a ring-shaped ion storage cell, as well as a plurality of radially inner disk-shaped ring electrodes and a plurality of radially outer disk-shaped ring electrodes, which delimit the ring-shaped ion storage cell. The invention also relates to a mass spectrometer that has such an ion trap as well as a control device that is designed to actuate the disk-shaped ring electrodes and the end cap electrodes for the storage, selection, excitation and/or detection of ions in the ring-shaped ion storage cell.

    TIME-OF-FLIGHT MASS SPECTROMETER
    4.
    发明申请
    TIME-OF-FLIGHT MASS SPECTROMETER 审中-公开

    公开(公告)号：US20170358440A1

    公开(公告)日：2017-12-14

    申请号：US15539229

    申请日：2014-12-24

    Applicant: SHIMADZU CORPORATION

    Inventor： Osamu FURUHASHI

    IPC: H01J49/40 ,  H01J49/42 ,  H01J37/26

    CPC classification number: H01J49/405 ,  H01J37/266 ,  H01J49/401 ,  H01J49/424

    Abstract: An ion reflector has a configuration in which multiple plate electrodes having a rectangular opening are arranged. The components are arranged so that a central axial line extending in the longitudinal direction of the opening lies on a plane which contains a straight line (Y-axis) connecting the centroidal position of an ion distribution in an ion trap and a central position on the detection surface of a detector, and a central axial line (X-axis) of an ion-ejecting direction. If the potential distribution along the central axis of the ion reflector is modified so that a portion of the reflecting field becomes a non-uniform electric field intended for improving isochronism for a group of ions to be detected, an area having an ideal potential distribution for realizing the isochronism is spread in the Y-axis direction.

    Ion ejection from a quadrupole ion trap
    7.
    发明授权
    Ion ejection from a quadrupole ion trap 有权
    从四极离子阱离子喷射

    公开(公告)号：US09548195B2

    公开(公告)日：2017-01-17

    申请号：US15093152

    申请日：2016-04-07

    Applicant: Thermo Fisher Scientific (Bremen) GmbH

    Inventor： Christian Albrecht Hock ,  Dmitry Grinfeld ,  Richard Heming

    IPC: H01J49/00 ,  H01J49/42 ,  H01J49/04 ,  H01J49/06 ,  H01J49/28 ,  H01J49/40

    CPC classification number: H01J49/427 ,  H01J49/0031 ,  H01J49/0481 ,  H01J49/063 ,  H01J49/282 ,  H01J49/40 ,  H01J49/4225 ,  H01J49/424 ,  H01J49/4245

    Abstract: A method of ejecting ions to be analyzed from a quadrupole ion trap in which a trapping field is created by one or more RF voltages applied to one or more electrodes of the trap, the method comprising the steps of cooling the ions to be analyzed within the quadrupole ion trap until the ions are thermalized, reducing the amplitude of one or more RF voltages applied to the quadrupole ion trap and applying the reduced amplitude RF voltages for one half cycle after the one or more RF voltages have reached a zero crossing point, turning off the RF voltages applied to the quadrupole ion trap, and ejecting the ions to be analyzed from the quadrupole ion trap.

    Abstract translation: 从四极离子阱中排出要分析的离子的方法，其中通过施加到阱的一个或多个电极的一个或多个RF电压产生捕获场，该方法包括以下步骤：将待分析的离子冷却在 四极离子阱，直到离子被热化，减少施加到四极离子阱的一个或多个RF电压的幅度，并且在一个或多个RF电压已经达到过零点之后将减小幅度的RF电压施加一个半周期，转动 关闭施加到四极离子阱的RF电压，并从四极离子阱中喷射待分析的离子。

    Multi-electrode ion trap
    8.
    发明授权
    Multi-electrode ion trap 有权

    公开(公告)号：US09437412B2

    公开(公告)日：2016-09-06

    申请号：US14801642

    申请日：2015-07-16

    Applicant: Thermo Finnigan LLC

    Inventor： Alexander Alekseevich Makarov

    IPC: H01J49/00 ,  H01J49/28 ,  H01J49/42 ,  H01J49/22

    CPC classification number: H01J49/282 ,  H01J49/0009 ,  H01J49/0031 ,  H01J49/22 ,  H01J49/424 ,  H01J49/425

    Abstract: This invention relates generally to multi-reflection electrostatic systems, and more particularly to improvements in and relating to the Orbitrap electrostatic ion trap. A method of operating an electrostatic ion trapping device having an array of electrodes operable to mimic a single electrode is proposed, the method comprising determining three or more different voltages that, when applied to respective electrodes of the plurality of electrodes, generate an electrostatic trapping field that approximates the field that would be generated by applying a voltage to the single electrode, and applying the three or more so determined voltages to the respective electrodes. Further improvements lie in measuring a plurality of features from peaks with different intensities from one or more collected mass spectra to derive characteristics, and using the measured characteristics to improve the voltages to be applied to the plurality of electrodes.

    Ion selection method in ion trap and ion trap system
    9.
    发明授权
    Ion selection method in ion trap and ion trap system 有权
    离子阱和离子阱系统中的离子选择方法

    公开(公告)号：US09396923B2

    公开(公告)日：2016-07-19

    申请号：US14427016

    申请日：2013-09-06

    Applicant: SHIMADZU CORPORATION

    Inventor： Kei Kodera ,  Makoto Hazama

    IPC: H01J49/42 ,  H01J49/44

    CPC classification number: H01J49/424 ,  H01J49/427 ,  H01J49/4285

    Abstract: Provided is an ion selection method capable of isolating and leaving a target ion in an ion trap within a short period of time and with high separating power. In a digital ion trap, after ions over a wide range of m/z near a target ion are selectively retained by rough isolation using an FNF signal or the like (S11), unnecessary ions on a low-mass side are removed with high separating power by changing the duty ratio of a rectangular voltage (S12). Furthermore, unnecessary ions on a high-mass side are removed with high separating power by resonant excitation discharge (S13).

    Abstract translation: 提供了一种离子选择方法，其能够在短时间内并且具有高分离能力的情况下在离子阱中分离和离开目标离子。 在数字离子阱中，通过使用FNF信号等的粗略隔离选择性地保持在目标离子附近的m / z的宽范围内的离子之后（S11），以高分离度除去低质量侧的不需要的离子 通过改变矩形电压的占空比来实现功率（S12）。 此外，通过谐振励磁放电以高分离能量去除高质量侧的不需要的离子（S13）。

    Microscale mass spectrometry systems, devices and related methods
    10.
    发明授权
    Microscale mass spectrometry systems, devices and related methods 有权
    微尺度质谱系统，装置及相关方法

    公开(公告)号：US09373492B2

    公开(公告)日：2016-06-21

    申请号：US13804911

    申请日：2013-03-14

    Applicant: The University of North Carolina at Chapel Hill

    Inventor： John Michael Ramsey

    IPC: H01J49/42 ,  H01J49/00

    CPC classification number: H01J49/424 ,  H01J49/0022 ,  H01J49/10 ,  Y10T29/49117

    Abstract: Mass spectrometry systems or assemblies therefore include an ionizer that includes at least one planar conductor, a mass analyzer with a planar electrode assembly, and a detector comprising at least one planar conductor. The ionizer, the mass analyzer and the detector are attached together in a compact stack assembly. The stack assembly has a perimeter that bounds an area that is between about 0.01 mm2 to about 25 cm2 and the stack assembly has a thickness that is between about 0.1 mm to about 25 mm.

    Abstract translation: 因此，质谱系统或组件包括包括至少一个平面导体的电离器，具有平面电极组件的质量分析器和包括至少一个平面导体的检测器。 电离器，质量分析器和检测器以紧凑的堆叠组件连接在一起。 堆叠组件具有界定在约0.01mm 2至约25cm 2之间的区域的周长，并且堆叠组件具有在约0.1mm至约25mm之间的厚度。

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