Mass Spectrometer and Mass Spectrometry Method

    公开(公告)号:US20240347328A1

    公开(公告)日:2024-10-17

    申请号:US18294930

    申请日:2022-03-25

    IPC分类号: H01J49/00 H01J49/04

    摘要: The method of operating a mass spectrometer includes: introducing precursor ions into a reaction chamber; generating radicals by generating plasma by supplying source gas and radio-frequency power to a radical generation chamber for a predetermined period by transmitting a predetermined control signal to a source gas supply part and a radio-frequency power supply part; generating product ions by introducing the radicals into the reaction chamber; measuring an intensity of light having a wavelength band including a wavelength of light emitted from the plasma inside the radical generation chamber; and determining and notifying an abnormality of the mass spectrometer on a basis of a fact that the intensity of the light exceeds a predetermined abnormality determination threshold value during a period other than the predetermined period.

    Capture Probe
    7.
    发明公开
    Capture Probe 审中-公开

    公开(公告)号:US20240344938A1

    公开(公告)日:2024-10-17

    申请号:US18431570

    申请日:2024-02-02

    申请人: UT-Battelle, LLC

    摘要: A system for sampling a sample material includes a device for directing sample into a capture probe. The device for supplying sample material to the probe can be a device for radiating energy to the surface to eject sample from the sample material. A probe includes an outer probe housing having an open end. A liquid supply conduit has an outlet positioned to deliver liquid to the open end. An exhaust conduit removes liquid from the open end of the housing. The liquid supply conduit can be connectable to a liquid supply for delivering liquid at a first volumetric flow rate to the open end of the housing. A liquid exhaust system can be in fluid connection with the liquid exhaust conduit for removing liquid from the liquid exhaust conduit at a second volumetric flow rate, which exceeds the first volumetric flow rate such that gas with sample is withdrawn with the liquid. The probe can produce a vortex of liquid in the liquid exhaust conduit. A method for sampling a surface and a sampling probe system are also disclosed.