Ion sampling for APPI mass spectrometry
    3.
    发明授权
    Ion sampling for APPI mass spectrometry 有权
    离子采样用于APPI质谱

    公开(公告)号:US07309859B2

    公开(公告)日:2007-12-18

    申请号:US11290187

    申请日:2005-11-30

    IPC分类号: H01J49/26

    摘要: An atmospheric pressure ion source, e.g. for a mass spectrometer, that produces ions by atmospheric pressure photoionization (APPI). It includes a vaporizer, a photon source for photoionizing vapor molecules upon exit from the vaporizer, a passageway for transporting ions to, for example, a mass spectrometer system, and a means for directing the ions into the passageway. The center axis of the vaporizer and the center axis of the passageway form an angle that may be about 90 degrees. Included in the invention is a method for creating ions by atmospheric pressure photoionization along an axis and directing them into a passageway oriented at an angle to that axis.

    摘要翻译: 大气压离子源,例如 用于通过大气压光电离(APPI)产生离子的质谱仪。 它包括蒸发器,用于在蒸发器出口时使蒸汽分子光离子化的光子源,用于将离子输送到例如质谱仪系统的通道和用于将离子引导到通道中的装置。 蒸发器的中心轴线和通道的中心轴线形成大约90度的角度。 本发明中包括一种通过沿着轴的大气压力光离子化产生离子的方法,并将它们引导到与该轴成一定角度的通道中。

    Multimode ionization mode separator
    5.
    发明授权
    Multimode ionization mode separator 有权
    多模电离模式分离器

    公开(公告)号:US07223968B2

    公开(公告)日:2007-05-29

    申请号:US11349469

    申请日:2006-02-06

    IPC分类号: H01J49/04

    摘要: A multimode ionization source includes an electrospray ionization source for providing a charged aerosol, an atmospheric pressure ionization source downstream from the electrospray ionization source for further ionizing said charged aerosol, and a mode separator, or mask, situated so as to separate a portion of the charged aerosol and prevent the portion from being exposed to the atmospheric pressure ionization source.

    摘要翻译: 多模电离源包括用于提供带电气溶胶的电喷雾离子化源,用于电喷雾离子化源的下游的大气压电离源,用于进一步电离所述带电气体,以及模式分离器或掩模, 并且防止该部分暴露于大气压电离源。