Mass Spectrometer
    21.
    发明申请
    Mass Spectrometer 有权
    质谱仪

    公开(公告)号:US20100108879A1

    公开(公告)日:2010-05-06

    申请号:US12514972

    申请日:2007-11-15

    IPC分类号: H01J49/26

    摘要: A mass spectrometer is disclosed comprising an ion mobility spectrometer (8) and an ion gate (9). A collision cell (10) is arranged downstream of the ion gate (9). The operation of the ion mobility spectrometer (8) and the ion gate (9) are synchronised so that only ions having a particular mass to charge ratio and a desired charge state are onwardly transmitted to the collision cell (10).

    摘要翻译: 公开了一种质谱仪,其包括离子迁移谱仪(8)和离子门(9)。 碰撞室(10)布置在离子门(9)的下游。 离子迁移谱仪(8)和离子浇口(9)的操作是同步的,使得只有具有特定质荷比的离子和期望的电荷状态向上传输到碰撞池(10)。

    Mass spectrometer
    22.
    发明授权
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US07622711B2

    公开(公告)日:2009-11-24

    申请号:US11574554

    申请日:2005-09-14

    IPC分类号: B01D59/44

    CPC分类号: H01J49/005

    摘要: A mass spectrometer is disclosed comprising an ion mobility spectrometer or separator (3) arranged upstream of a collision or fragmentation cell (5). Ions are separated according to their ion mobility within the ion mobility spectrometer or separator (3). The kinetic energy of the ions exiting the ion mobility spectrometer or separator (3) is increased substantially linearly with time in order to optimize the fragmentation energy of ions as they enter the collision or fragmentation cell (5).

    摘要翻译: 公开了一种质谱仪,其包括设置在碰撞或破碎电池(5)的上游的离子迁移谱仪或分离器(3)。 离子在离子迁移谱仪或分离器(3)内根据其离子迁移率分离。 离子离子迁移谱仪或分离器(3)离子的动能随时间呈线性增加,以优化离子进入碰撞或破碎电池(5)时的碎裂能。

    Mass Spectrometer
    23.
    发明申请
    Mass Spectrometer 有权
    质谱仪

    公开(公告)号:US20090014641A1

    公开(公告)日:2009-01-15

    申请号:US12094561

    申请日:2006-12-07

    IPC分类号: B01D59/44

    CPC分类号: G01N27/622 H01J49/062

    摘要: A closed-loop ion guide (1) is disclosed comprising a plurality of electrodes having apertures through which ions are transmitted in use. Ions are injected into the closed-loop ion guide (1) and may make several circuits of the closed-loop ion guide (1) before being ejected from the ion guide (1). In a mode of operation the ion guide (1) may be arranged to separate ions temporally according to their ion mobility.

    摘要翻译: 公开了一种闭环离子导向器(1),其包括具有孔的多个电极,在使用中通过该孔具有离子。 离子被注入到闭环离子导向器(1)中,并且可以在从离子导向器(1)喷射之前制造闭环离子导向器(1)的几个电路。 在操作模式中,离子导向器(1)可以被布置成根据离子迁移率暂时分离离子。

    Mass spectrometer
    25.
    发明授权
    Mass spectrometer 有权
    质谱仪

    公开(公告)号:US08354634B2

    公开(公告)日:2013-01-15

    申请号:US12601094

    申请日:2008-05-22

    IPC分类号: B01D59/44 H01J49/00

    CPC分类号: H01J49/0036 H01J49/40

    摘要: A mass spectrometer is disclosed wherein an ion signal is split into a first and second signal. The first and second signals are multiplied by different gains and are digitised. Arrival time and intensity pairs are calculated for both digitised signals and the resulting time and intensity pairs are combined to form a high dynamic range spectrum. The spectrum is then combined with other corresponding spectra to form a summed spectrum.

    摘要翻译: 公开了一种质谱仪,其中离子信号被分成第一和第二信号。 第一和第二信号乘以不同的增益并被数字化。 对于两个数字化信号计算到达时间和强度对,并且将所得到的时间和强度对组合以形成高动态范围谱。 然后将光谱与其他对应的光谱组合以形成相加光谱。

    Mass spectrometer
    26.
    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
    30.
    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。