Mass spectrometer
    4.
    发明授权
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US09281171B2

    公开(公告)日:2016-03-08

    申请号:US11721260

    申请日:2005-12-08

    IPC分类号: H01J49/40 H01J49/06 H01J49/00

    CPC分类号: H01J49/062 H01J49/004

    摘要: A mass spectrometer is disclosed comprising a mass selective ion trap or mass analyzer arranged upstream of an ion guide. Ions are scanned out of the mass selective ion trap or mass analyzer and are received in one or more axial potential wells created or formed within the ion guide. One or more transient DC voltages or potentials are preferably applied to the ion guide in order to create a plurality of axial potential wells which are translated along the length of the ion guide. Ions are released in packets from the exit of the ion guide and are orthogonally acceleration into a drift or flight region of an orthogonal acceleration Time of Flight mass analyzer with a relatively high duty cycle.

    摘要翻译: 公开了一种质谱仪,其包括布置在离子导向器上游的质量选择性离子阱或质量分析器。 离子从质量选择性离子阱或质量分析器扫描出来,并被接收在一个或多个在离子导向器内产生或形成的轴向势阱中。 优选地将一个或多个瞬态DC电压或电位施加到离子导向器,以便产生沿离子导向件的长度平移的多个轴向势阱。 离子从离子导向器的出口释放出来的离子,并且正交加速到相对较高占空比的正交加速时间飞行质量分析器的漂移或飞行区域。

    Mass spectrometer
    8.
    发明授权
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US07919747B2

    公开(公告)日:2011-04-05

    申请号:US12297481

    申请日:2007-04-30

    IPC分类号: H01J49/00 H01J49/44

    摘要: An ion guide or mass analyser (2) is disclosed comprising a plurality of electrodes (2a) having apertures through which ions are transmitted in use. A pseudo-potential barrier is created at the exit of the ion guide or mass analyser (2). The amplitude or depth of the pseudo-potential barrier is inversely proportional to the mass to charge ratio of an ion. One or more transient DC voltages (4) are applied to the electrodes (2a) of the ion guide or mass analyser (2) in order to urge ions along the length of the ion guides or mass analyser (2). The amplitude of the transient DC voltage (4) applied to the electrode (2a) may be increased with time so that ions are caused to be emitted from the ion guide or mass analyser (2) in reverse order of their mass to charge ratio.

    摘要翻译: 公开了一种离子导向器或质量分析器(2),其包括具有孔的多个电极(2a),在使用中通过该孔具有离子。 在离子导向器或质量分析器(2)的出口处产生伪势垒。 伪势垒的幅度或深度与离子的质荷比成反比。 一个或多个瞬态DC电压(4)被施加到离子导向器或质量分析器(2)的电极(2a),以促使沿着离子导向器或质量分析器(2)的长度的离子。 施加到电极(2a)的瞬态直流电压(4)的振幅可以随时间增加,从而离子引导或质量分析器(2)以与其质荷比相反的顺序发射离子。

    Mass Spectrometer
    10.
    发明申请
    Mass Spectrometer 有权
    质谱仪

    公开(公告)号:US20110180704A1

    公开(公告)日:2011-07-28

    申请号:US13078198

    申请日:2011-04-01

    IPC分类号: H01J49/28 H01J3/26

    摘要: An ion guide or mass analyser is disclosed comprising a plurality of electrodes having apertures through which ions are transmitted in use. A pseudo-potential barrier is created at the exit of the ion guide or mass analyser. The amplitude or depth of the pseudo-potential barrier is inversely proportional to the mass to charge ratio of an ion. One or more transient DC voltages are applied to the electrodes of the ion guide or mass analyser in order to urge ions along the length of the ion guides or mass analyser. The amplitude of the transient DC voltage applied to the electrode may be increased with time so that ions are caused to be emitted from the ion guide or mass analyser in reverse order of their mass to charge ratio.

    摘要翻译: 公开了一种离子导向器或质量分析器,其包括具有孔的多个电极,在使用中离子传播通过该孔。 在离子导向器或质量分析器的出口处产生伪势垒。 伪势垒的幅度或深度与离子的质荷比成反比。 一个或多个瞬态直流电压被施加到离子导向器或质量分析器的电极,以沿着离子导向器或质量分析器的长度推动离子。 施加到电极的瞬态直流电压的幅度可以随时间增加,使得离子从离子导向器或质量分析器以其质荷比的相反顺序被发射。