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    MINIATURE ION SOURCE OF FIXED GEOMETRY
    3.
    发明公开
    MINIATURE ION SOURCE OF FIXED GEOMETRY 审中-公开
    与固定几何形状微型离子源

    公开(公告)号：EP3047512A1

    公开(公告)日：2016-07-27

    申请号：EP14772423.1

    申请日：2014-09-17

    申请人： Micromass UK Limited

    发明人： BAJIC, Stevan ,  GORDON, David ,  KENNY, Daniel James ,  MOULDS, Richard Barrington ,  O'BRIEN, Stephen ,  TRIVETT, Ian ,  WHYATT, Kate

    IPC分类号： H01J49/16

    CPC分类号： H01J49/167 ,  H01J49/0027 ,  H01J49/044 ,  H01J49/165

    摘要： A mass spectrometer is disclosed comprising an atmospheric pressure interface comprising a gas cone having an inlet aperture, wherein the gas cone has a first longitudinal axis arranged along an x-axis and an Electrospray ion source comprising a first capillary tube having an outlet and having a second longitudinal axis and a second capillary tube which surrounds the first capillary tube. The mass spectrometer further comprises a desolvation gas supply tube and a first device arranged and adapted to supply an analyte liquid via the first capillary tube so that the liquid exits the outlet of the first capillary tube at a flow rate >200 μL/min. The mass spectrometer further comprises a second device arranged and adapted to supply a nebuliser gas via the second capillary tube at a flow rate in the range 80-150 L/hr, wherein an outlet of the first capillary tube is arranged at a distance x mm along the x-axis as measured from the centre of the gas cone inlet aperture, a distance y mm along a y-axis as measured from the centre of the gas cone inlet aperture and a distance z mm along a z-axis as measured from the centre of the gas cone inlet aperture. The x-axis, the y-axis and the z-axis are mutually orthogonal. The desolvation gas supply tube surrounds the second capillary tube and the mass spectrometer further comprises a third device arranged and adapted to supply a desolvation gas via the desolvation gas supply tube at a flow rate in the range 400-1200 L/hr, a heater arranged and adapted to heat the desolvation gas to a temperature ≥100° C. and a fourth device arranged and adapted to supply a cone gas to the gas cone at a flow rate in the range 40-80 L/hr and wherein x is in the range 2.0-5.0 mm and wherein the ratio z/x is in the range 1-5:1.

    CHAMBER SEAL FOR MASS SPECTROMETER
    8.
    发明公开
    CHAMBER SEAL FOR MASS SPECTROMETER 审中-公开
    壳体密封的质谱仪

    公开(公告)号：EP3047514A1

    公开(公告)日：2016-07-27

    申请号：EP14772426.4

    申请日：2014-09-17

    申请人： Micromass UK Limited

    发明人： O'BRIEN, Stephen ,  TRIVETT, Ian

    IPC分类号： H01J49/24

    摘要： A mass spectrometer is disclosed comprising a first component, an annular vacuum chamber seal and a second component. The first component has a groove. The annular vacuum chamber seal comprises a main body portion and one or more blade or rib portions which protrude from the main body portion. The main body portion is located in the groove and the one or more blade or rib portions protrude above or beyond a surface of the first component. The second component is slid, in use, along the surface of the first component thereby deforming the one or more blade or rib portions so that the one or more blade or rib portions form a radial, diametric or piston seal between the first and second components.