MASS SPECTROMETER
    2.
    发明申请
    MASS SPECTROMETER 有权
    质谱仪

    公开(公告)号:US20100294923A1

    公开(公告)日:2010-11-25

    申请号:US12445774

    申请日:2007-10-16

    IPC分类号: H01J49/26 H01J49/06

    摘要: A collision or fragmentation cell (4) is disclosed comprising a plurality of electrodes wherein a first RF voltage (7a) is applied to an upstream group of electrodes and a second different RF voltage (7b) is applied to a downstream group of electrodes. The radial confinement of parent ions entering the collision or fragmentation cell (4) is optimised by the first RF voltage applied to the upstream group of electrodes and the radial confinement of daughter or fragment ions produced within the collision or fragmentation cell (4) is optimised by the second different RF voltage applied to the downstream group of electrodes.

    摘要翻译: 公开了一种碰撞或分裂单元(4),其包括多个电极,其中将第一RF电压(7a)施加到上游电极组,并且将第二不同RF电压(7b)施加到下游电极组。 通过施加到上游电极组的第一RF电压来优化进入碰撞或破碎电池(4)的母体离子的径向约束,并且优化在碰撞或断裂电池(4)内产生的子或碎片离子的径向约束 通过施加到下游组电极的第二不同RF电压。

    Mass spectrometer
    7.
    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
    8.
    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。

    Mass spectrometer
    9.
    发明授权
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US08952320B2

    公开(公告)日:2015-02-10

    申请号:US11719665

    申请日:2005-11-18

    IPC分类号: H01J49/26 H01J49/42

    CPC分类号: H01J49/4215 H01J49/428

    摘要: A mass spectrometer is disclosed comprising a quadrupole rod set ion guide or mass filter device (6). A broadband frequency signal (10) having one or more notches (11a, 11b, 11c) is applied to the rods of the quadrupole rod set (6). The notched broadband frequency signal (10) causes undesired ions to be resonantly ejected from the ion guide (6). The notched broadband frequency signal (10) has frequency components missing which correspond with the resonance frequency of ions which are desired to be onwardly transmitted. The ion guide or mass filter device (6) enables a plurality of desired ions having different mass to charge ratios to be simultaneously transmitted by the ion guide or mass filter device (6) whilst other ions are resonantly ejected from the ion guide or mass filter device (6).

    摘要翻译: 公开了一种质谱仪,其包括四极杆离子导向器或质量过滤装置(6)。 具有一个或多个凹口(11a,11b,11c)的宽频率信号(10)被施加到四极杆组(6)的杆上。 有缺口的宽带频率信号(10)使不想要的离子从离子导向器(6)共振地弹出。 缺口宽带频率信号(10)具有与期望向前发射的离子的谐振频率相对应的频率分量。 离子导向器或质量过滤装置(6)使得具有不同质荷比的多个所需离子能够由离子导向器或质量过滤装置(6)同时传输,而其它离子从离子导向器或质量过滤器 装置(6)。

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

    公开(公告)号:US20090194688A1

    公开(公告)日:2009-08-06

    申请号:US11719665

    申请日:2005-11-18

    IPC分类号: H01J49/00 B01D59/44

    CPC分类号: H01J49/4215 H01J49/428

    摘要: A mass spectrometer is disclosed comprising a quadrupole rod set ion guide or mass filter device (6). A broadband frequency signal (10) having one or more notches (11a, 11b, 11c) is applied to the rods of the quadrupole rod set (6). The notched broadband frequency signal (10) causes undesired ions to be resonantly ejected from the ion guide (6). The notched broadband frequency signal (10) has frequency components missing which correspond with the resonance frequency of ions which are desired to be onwardly transmitted. The ion guide or mass filter device (6) enables a plurality of desired ions having different mass to charge ratios to be simultaneously transmitted by the ion guide or mass filter device (6) whilst other ions are resonantly ejected from the ion guide or mass filter device (6).

    摘要翻译: 公开了一种质谱仪,其包括四极杆离子导向器或质量过滤装置(6)。 具有一个或多个凹口(11a,11b,11c)的宽频率信号(10)被施加到四极杆组(6)的杆上。 有缺口的宽带频率信号(10)使不想要的离子从离子导向器(6)共振地弹出。 缺口宽带频率信号(10)具有与期望向前发射的离子的谐振频率相对应的频率分量。 离子导向器或质量过滤装置(6)使得具有不同质荷比的多个所需离子能够由离子导向器或质量过滤装置(6)同时传输,而其它离子从离子导向器或质量过滤器 装置(6)。