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    ION MOBILITY SEPARATION SYSTEM WITH ROTATING FIELD CONFINEMENT
    64.
    发明申请
    ION MOBILITY SEPARATION SYSTEM WITH ROTATING FIELD CONFINEMENT 有权

    公开(公告)号：US20220057363A1

    公开(公告)日：2022-02-24

    申请号：US16998174

    申请日：2020-08-20

    Applicant: Bruker Daltonik GmbH

    Inventor： Aneesh PRABHAKARAN

    IPC: G01N27/62 ,  H01J49/06 ,  H01J49/10 ,  H01J49/24 ,  H01J49/00 ,  H01J49/42

    Abstract: An ion mobility separator includes an ion path with a central axis along which ions travel, the ion path containing a gas. A first force is applied to the ions in a first axial direction, and a second force that varies spatially along the ion path is applied to the ions in second axial direction opposite the first axial direction. A rotating confinement field has a radially-inhomogeneous electric potential with relative maxima and minima that rotate about the central axis as a function of time, the confinement field exerting a radial confinement force on the ions in a radial direction toward the central axis. The ion mobility separator may be operated at elevated pressures including ambient pressure and higher. The first and/or second axial forces may be a constant or gradient gas flow, a constant or gradient electric field or an axial component of the rotating confinement field.

    Methods for Transferring Ions Between Trapping Devices of Variable Internal Pressure
    67.
    发明申请
    Methods for Transferring Ions Between Trapping Devices of Variable Internal Pressure 有权

    公开(公告)号：US20210375606A1

    公开(公告)日：2021-12-02

    申请号：US16886288

    申请日：2020-05-28

    Applicant: Thermo Finnigan LLC

    Inventor： Jesse D. CANTERBURY ,  Graeme C. McALISTER

    IPC: H01J49/02 ,  H01J49/42 ,  H01J49/06 ,  H01J49/00 ,  H01J49/10

    Abstract: A mass spectrometer system, comprises: an ion source; a first and a second multipole apparatus; one or more ion gates or ion lenses between the first and second multipole apparatuses; at least one power supply configured to provide voltages to electrodes of the ion source, the mass analyzer, the first and second multipole apparatuses and the one or more ion gates or ion lenses; and a computer or electronic controller electrically coupled to the at least one power supply, wherein the computer or electronic controller comprises computer-readable instructions that are operable to cause the at least one power supply to supply voltages to the electrodes that cause transfer of ions from the first multipole apparatus to the second multipole apparatus, wherein a duration of a time allotted for completion of the transfer of the ions is dependent upon one or more properties of the ions being transferred.

    Mass spectrometer
    68.
    发明授权
    Mass spectrometer 有权

    公开(公告)号：US11189478B2

    公开(公告)日：2021-11-30

    申请号：US16771397

    申请日：2018-02-07

    Applicant: SHIMADZU CORPORATION

    Inventor： Manabu Ueda ,  Kota Nagasao

    IPC: H01J49/42 ,  H01J49/40 ,  H01J49/24 ,  H01J49/10

    Abstract: Four rod electrodes (50a to 50d) for separating ions according to a mass-to-charge ratio are held by a rod holder (51). The rod holder (51) is placed on a metal holder sustaining stand (52) provided on a bottom surface of a vacuum housing (1), and is fixed while being pressed by a fixation band (53) fixed to the holder sustaining stand (52) with screws (56). The fixation band (53) has a coating film layer (532) formed by a black nickel plating process on the entire surface of a main member (531) made from phosphor bronze. The coating film layer (532) has high emissivity, and thus heat transferred from the rod holder (51) to the fixation band (53) is efficiently radiated into the vacuum housing (1). Therefore, heat generated in the rod holder (51) due to dielectric loss is efficiently dissipated, and deformation of the rod holder can be reduced.

    Sample analysis method and sample introduction device
    69.
    发明授权
    Sample analysis method and sample introduction device 有权

    公开(公告)号：US11189475B2

    公开(公告)日：2021-11-30

    申请号：US16976211

    申请日：2018-12-20

    Applicant: SHIN-ETSU HANDOTAI CO., LTD.

    Inventor： Kenji Araki

    IPC: H01J49/00 ,  H01J49/04 ,  G01N27/62 ,  H01J49/10 ,  H05H1/30

    Abstract: A desolvation unit performs desolvation by heating after a sample solution is turned to sample mist by a nebulizer. A sample gas that contains the desolvated sample mist and a carrier gas is introduced through a sample introduction tube to a plasma torch. An addition unit for adding, to the sample introduction tube, a water-containing gas is provided. The addition unit includes a container that contains ultrapure water, a gas tube for introducing the carrier gas into the ultrapure water to cause bubbling, and a gas tube for adding the water-containing gas, to the sample introduction tube. The plasma torch generates an inductively coupled plasma under the condition that supplied power is set to a range of 550 W to 700 W. Generation of interfering molecule ions due to an element having a high ionization potential is inhibited when an element in a sample ionized by the plasma is analyzed.

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