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    Simultaneous acquisition of chemical information
    3.
    发明授权
    Simultaneous acquisition of chemical information 有权
    同时获取化学信息

    公开(公告)号：US07294830B2

    公开(公告)日：2007-11-13

    申请号：US10500685

    申请日：2003-01-02

    申请人： Gary M. Hieftje ,  Steven J. Ray

    发明人： Gary M. Hieftje ,  Steven J. Ray

    IPC分类号： B01D59/44

    CPC分类号： H01J49/107

    摘要： A method and apparatus for operating a mass spectrometer include providing at least two different ion sources, and coupling ion streams simultaneously from the at least two different ion sources to the spectrometer. Another method of operating a spectrometer includes a first coupling an ion stream from a first one of the ion sources into the spectrometer, next coupling an ion stream from a second one of the ion sources into the spectrometer, next coupling an ion stream from the second one of the ion sources into the spectrometer, and next coupling an ion stream from the first one of the ion sources into the spectrometer.

    摘要翻译： 用于操作质谱仪的方法和装置包括提供至少两种不同的离子源，并且将离子流同时从至少两种不同的离子源耦合到光谱仪。 操作光谱仪的另一种方法包括将离子流中的第一离子源的离子流首先耦合到光谱仪中，然后将来自第二离子源的离子流耦合到光谱仪中，然后将离子流从第二离子流 离子源中的一个进入光谱仪，然后将来自第一个离子源的离子流耦合到光谱仪中。

    RESOLUTION AND MASS RANGE PERFORMANCE IN DISTANCE-OF-FLIGHT MASS SPECTROMETRY WITH A MULTICHANNEL FOCAL-PLANE CAMERA DETECTOR
    9.
    发明申请
    RESOLUTION AND MASS RANGE PERFORMANCE IN DISTANCE-OF-FLIGHT MASS SPECTROMETRY WITH A MULTICHANNEL FOCAL-PLANE CAMERA DETECTOR 审中-公开
    使用多通道光学平面相机检测器的距离飞行质谱分辨率和质谱范围性能

    公开(公告)号：US20140138538A1

    公开(公告)日：2014-05-22

    申请号：US14110998

    申请日：2012-04-16

    申请人： Gary M. Hieftje ,  Christie George Enke ,  Alexander W. Graham ,  Steven J. Ray ,  Elise Dennis ,  Charles J. Barinaga ,  David W. Koppenaal

    发明人： Gary M. Hieftje ,  Christie George Enke ,  Alexander W. Graham ,  Steven J. Ray ,  Elise Dennis ,  Charles J. Barinaga ,  David W. Koppenaal

    IPC分类号： H01J49/34

    CPC分类号： H01J49/34 ,  H01J49/40

    摘要： A distance-of-flight mass spectrometer (DOFMS) includes an ion source, a field-free region, an extraction region in which ions are accelerated, and a spatially-selective detector for spatially selectively detecting ions extracted by the extraction region. A method for operating a distance-of-flight mass spectrometer DOFMS comprises controlling a detection time in such a way as to permit ions with progressively greater mass-to-charge (m/z) ratios to enter the extraction region of the DOFMS at positions which will permit the ions with progressively greater m/z ratios to enter the detector of the DOFMS, generating a component mass spectrum at each selected value of detection time, and then assembling a composite mass spectrum by shifting the distance-of-flight axis of each component mass spectrum by a distance corresponding to the change in detection time.

    摘要翻译： 飞行时间质谱仪（DOFMS）包括离子源，无场区域，其中离子被加速的提取区域和用于空间选择性地检测由提取区域提取的离子的空间选择性检测器。 用于操作飞行时间质谱仪DOFMS的方法包括以这样的方式控制检测时间，使得允许具有逐渐更大的质荷比（m / z）比的离子在位置处进入DOFMS的提取区域 这将允许具有逐渐更大的m / z比的离子进入DOFMS的检测器，在检测时间的每个选定值处产生组分质谱，然后通过将飞行时间轴的位移 每个组分质谱与检测时间的变化相对应。