MASS SPECTROMETER
    1.
    发明申请
    MASS SPECTROMETER 有权
    质谱仪

    公开(公告)号:US20090302210A1

    公开(公告)日:2009-12-10

    申请号:US12299996

    申请日:2007-05-10

    IPC分类号: H01J49/26

    摘要: A mass spectrometer comprising a collision, fragmentation or reaction cell (4) is disclosed. The collision, fragmentation or reaction cell (4) is repeatedly switched back and forth between a high fragmentation mode of operation and a low fragmentation mode of operation. Mass spectral data sets are obtained in both modes of operation. A decimal mass filter is applied to one or both sets of data. In particular, fragment ions or metabolites related to a parent or precursor ion of interest are identified on the basis of having a decimal mass which is similar to that of the parent or precursor ion of interest.

    摘要翻译: 公开了一种包含碰撞,碎裂或反应池(4)的质谱仪。 碰撞,破碎或反应池(4)在高碎裂操作模式和低碎裂操作模式之间来回重复切换。 在两种操作模式下获得质谱数据集。 十进制质量过滤器应用于一组或两组数据。 特别地,与目标亲本或前体离子相关的片段离子或代谢物基于具有与感兴趣的亲本或前体离子的十进制质量相似的十进制质量来鉴定。