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53 条记录 (耗时 0.023 秒)

    MASS SPECTROMETER
    11.
    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

    申请人： Daniel James Kenny ,  Robert Harold Bateman ,  Martin Green ,  Jason Lee Wildgoose ,  Steven Derek Pringle

    发明人： Daniel James Kenny ,  Robert Harold Bateman ,  Martin Green ,  Jason Lee Wildgoose ,  Steven Derek Pringle

    IPC分类号： H01J49/26 ,  H01J49/06

    CPC分类号： H01J49/005 ,  H01J49/0031 ,  H01J49/004 ,  H01J49/0045 ,  H01J49/065 ,  H01J49/34 ,  H01J49/4235

    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
    14.
    发明申请
    MASS SPECTROMETER 有权
    质谱仪

    公开(公告)号：US20100096543A1

    公开(公告)日：2010-04-22

    申请号：US12522769

    申请日：2008-01-15

    申请人： Daniel James Kenny ,  Jason Lee Wildgoose

    发明人： Daniel James Kenny ,  Jason Lee Wildgoose

    IPC分类号： H01J49/26

    CPC分类号： H01J49/401

    摘要： A Time of Flight mass analyser is disclosed wherein the time period between successive orthogonal acceleration pulses is less than the time of flight of ions having the maximum mass to charge ratio of interest. As a result, some ions are subject to wrap-around and will appear in a subsequent mass spectrum. Mass spectra obtained at two different sampling rates may be compared and mass peaks relating to ions which have and have not been subject to wrap-around may be identified.

    摘要翻译： 公开了一种飞行时间质量分析器，其中连续正交加速脉冲之间的时间段小于具有最大质荷比的离子的飞行时间。 结果，一些离子被卷绕并将出现在随后的质谱中。 可以比较以两种不同采样速率获得的质谱，并且可以鉴定与具有和未被卷绕的离子相关的质谱峰。

    Fast pushing time of flight mass spectrometer combined with restricted mass to charge ratio range delivery
    16.
    发明授权
    Fast pushing time of flight mass spectrometer combined with restricted mass to charge ratio range delivery 有权
    快速推进飞行时间质谱仪结合限制质量与电荷比范围传送

    公开(公告)号：US09048081B2

    公开(公告)日：2015-06-02

    申请号：US13997556

    申请日：2011-12-22

    申请人： Martin Raymond Green ,  Daniel James Kenny ,  Jason Lee Wildgoose

    发明人： Martin Raymond Green ,  Daniel James Kenny ,  Jason Lee Wildgoose

    IPC分类号： H01J49/40 ,  H01J49/02 ,  H01J49/00

    CPC分类号： H01J49/401 ,  H01J49/0031 ,  H01J49/0086

    摘要： Ions having a restricted range of mass to charge ratios are transmitted to the acceleration region of a Time of Flight mass analyzer. A control system applies a first extraction pulse to an acceleration electrode in order to accelerate a first group of ions into the time of flight region at a first time T1, wherein ions having the lowest mass to charge ratio in the first group of ions have a time of flight ΔT1min through the time of flight region and ions having the highest mass to charge ratio in the first group of ions have a time of flight ΔT1max through the time of flight region. The control system applies a second extraction pulse to the acceleration electrode at a subsequent second time T2, wherein ΔT1max−ΔT1min≦T2−T1

    摘要翻译： 具有有限范围的质荷比的离子被传送到飞行时间质量分析器的加速区域。 控制系统将第一提取脉冲施加到加速电极，以便在第一时间T1将第一组离子加速到飞行时间区域，其中在第一组离子中具有最低质荷比的离子具有 飞行时间Dgr;飞行时间T1min，第一组离子具有最高质荷比的离子在飞行时间段内具有飞行时间Dgr; T1max。 控制系统在随后的第二时间T2向加速电极施加第二提取脉冲，其中＆Dgr; T1max-＆Dgr; T1min＆N1; T2-T1 <＆Dgr; T1max。

    Ion Population Control Device For A Mass Spectrometer
    19.
    发明申请
    Ion Population Control Device For A Mass Spectrometer 有权
    用于质谱仪的离子种群控制装置

    公开(公告)号：US20120119078A1

    公开(公告)日：2012-05-17

    申请号：US13145368

    申请日：2010-01-20

    申请人： Martin Raymond Green ,  Daniel James Kenny ,  Jason Lee Wildgoose

    发明人： Martin Raymond Green ,  Daniel James Kenny ,  Jason Lee Wildgoose

    IPC分类号： H01J49/42 ,  H01J49/00

    CPC分类号： H01J49/4265

    摘要： A mass spectrometer is disclosed wherein an ion beam attenuator is arranged upstream of an ion trap mass analyser. An ion tunnel ion trap comprising an upstream ion accumulation section and a downstream ion accumulation section is arranged upstream of the ion beam attenuator. Ions are released from the ion tunnel ion trap and the intensity of the ion beam which is transmitted to the ion trap analyser is controlled by the ion beam attenuator. The fill time during which ions are admitted into the ion trap mass analyser remains substantially constant and is substantially independent of the intensity of the ion beam.

    摘要翻译： 公开了一种质谱仪，其中离子束衰减器布置在离子阱质量分析器的上游。 包括上游离子聚集部分和下游离子聚集部分的离子隧道离子阱设置在离子束衰减器的上游。 离子离子离子阱释放离子，离子束分离器的离子束强度由离子束衰减器控制。 离子进入离子阱质量分析仪的填充时间保持基本恒定，并且基本上与离子束的强度无关。

    DC ion guide for analytical filtering/separation
    20.
    发明授权
    DC ion guide for analytical filtering/separation 有权
    用于分析过滤/分离的直流离子导向器

    公开(公告)号：US09111654B2

    公开(公告)日：2015-08-18

    申请号：US14003487

    申请日：2012-03-07

    申请人： Kevin Giles ,  Martin Raymond Green ,  Daniel James Kenny ,  David J. Langridge ,  Jason Lee Wildgoose

    发明人： Kevin Giles ,  Martin Raymond Green ,  Daniel James Kenny ,  David J. Langridge ,  Jason Lee Wildgoose

    IPC分类号： H01J49/26 ,  G21K1/00 ,  H01J49/42 ,  H01J49/28

    CPC分类号： G21K1/00 ,  H01J49/062 ,  H01J49/28 ,  H01J49/427

    摘要： An ion guide is disclosed comprising a plurality of electrodes. A first device is arranged and adapted to apply a RF voltage to at least some of the electrodes in order to form, in use, a pseudo-potential well which acts to confine ions in a first direction within the ion guide. A second device is arranged and adapted to apply a DC voltage to at least some of the electrodes in order to form, in use, a DC potential well which acts to confine ions in a second direction within the ion guide. A third device is arranged and adapted to cause ions having desired or undesired mass to charge ratios to be mass to charge ratio selectively ejected from the ion guide in the second direction.

    摘要翻译： 公开了一种离子导向器，其包括多个电极。 第一装置被布置并适于将RF电压施加到至少一些电极，以在使用中形成用于将离子限制在离子导向器内的第一方向上的伪电位阱。 第二装置被布置并适于将DC电压施加到至少一些电极，以在使用中形成用于在离子导向器内沿第二方向限制离子的DC势阱。 第三装置被布置并适于使具有期望或不需要的质量的充电比例的离子成为从第二方向从离子导向器选择性地喷射的质荷比。