公开(公告)号：US10546738B1

公开(公告)日：2020-01-28

申请号：US16226351

申请日：2018-12-19

Applicant: Agilent Technologies, Inc.

Inventor： Mingda Wang ,  Maozi Liu ,  Patrick D. Perkins ,  Jing Tang

IPC: H01J49/04 ,  H01J49/24

Abstract: An ion transfer device includes a tube, a resistive layer on an inside surface of the tube, and a dielectric layer on the resistive layer. The device defines a conduit providing a transfer path for gas and ions. The conduit is surrounded by the dielectric layer. The dielectric layer protects the resistive layer from the chemical environment in the conduit, while being thin enough to allow charges to pass through the dielectric layer and be dissipated by the resistive layer.

公开(公告)号：US10388501B1

公开(公告)日：2019-08-20

申请号：US15959884

申请日：2018-04-23

Applicant: Agilent Technologies, Inc.

Inventor： Maozi Liu ,  Nigel P. Gore

IPC: H01J49/04 ,  H01J49/06 ,  H01J49/24

Abstract: An ion transfer device for transferring ions from a first chamber to a second, reduced-pressure chamber includes a tube and a bore selector. The tube includes a plurality of tube bores. The bore selector is positioned at an inlet end of the tube and includes an inlet port. The tube is movable relative to the bore selector, and/or the bore selector is movable relative to the tube, to align the inlet port with a selected one of the tube bores while blocking the other tube bores. Alignment of the inlet port with the selected tube bore defines an ion transfer path from the first chamber, through the selected tube bore, and to the second chamber. The ion transfer device may be utilized, for example, in an atmospheric-pressure interface of a mass spectrometer.

公开(公告)号：US20140151546A1

公开(公告)日：2014-06-05

申请号：US14054703

申请日：2013-10-15

Applicant: Agilent Technologies, Inc.

Inventor： Gangqiang Li ,  Maozi Liu

IPC: G01N30/72

CPC classification number: G01N30/7206 ,  G01N30/467 ,  G01N30/6043 ,  H01J49/062

Abstract: A gas chromatograph-mass spectrometer (GC-MS) system includes a multi-capillary GC column coupled to a mass analyzer through an ionization interface. The ionization interface includes an ionization device and an ion guide configured for receiving a high-capacity gas-sample flow from the GC column and transmitting a compressed ion beam to the mass analyzer. The ion beam may be converging.

Abstract translation: 气相色谱 - 质谱仪（GC-MS）系统包括通过电离界面耦合到质量分析器的多毛细管GC柱。 离子化界面包括电离装置和离子导向器，离子导向器被配置用于接收来自GC柱的高容量气体样品流，并将压缩的离子束传输到质量分析器。 离子束可能会聚。

公开(公告)号：US08841611B2

公开(公告)日：2014-09-23

申请号：US14054703

申请日：2013-10-15

Applicant: Agilent Technologies, Inc.

Inventor： Gangqiang Li ,  Maozi Liu

IPC: G01N30/72 ,  G01N30/02 ,  B01D53/14

CPC classification number: G01N30/7206 ,  G01N30/467 ,  G01N30/6043 ,  H01J49/062

Abstract: A gas chromatograph-mass spectrometer (GC-MS) system includes a multi-capillary GC column coupled to a mass analyzer through an ionization interface. The ionization interface includes an ionization device and an ion guide configured for receiving a high-capacity gas-sample flow from the GC column and transmitting a compressed ion beam to the mass analyzer. The ion beam may be converging.

Abstract translation: 气相色谱 - 质谱仪（GC-MS）系统包括通过电离界面耦合到质量分析器的多毛细管GC柱。 离子化界面包括电离装置和离子导向器，离子导向器被配置用于接收来自GC柱的高容量气体样品流，并将压缩的离子束传输到质量分析器。 离子束可能会聚。