Ion-trap mass analyzing apparatus and ion trap mass analyzing method
    1.
    发明授权
    Ion-trap mass analyzing apparatus and ion trap mass analyzing method 失效
    离子阱质量分析仪和离子阱质量分析方法

    公开(公告)号:US6140641A

    公开(公告)日:2000-10-31

    申请号:US089088

    申请日:1998-06-02

    CPC分类号: H01J49/424 H01J49/4275

    摘要: An numerical analysis time which is assigned to mass select one ion species having a specific mass-to-charge ratio mass selected is divided into the first part time and the second part time, and a dipole auxiliary electric field capable of spatially reducing a spread is superimposed in the first part time of the numerical analysis time and a quadrupole auxiliary voltage capable of rapidly emitting ions when position coordinates are large is superimposed in the second part of the time. Therefore, the initial spatial spread is reduced in the first part time and the trajectories of ions is rapidly amplified in the second part time, and the ions are emitted. Thus, the entire mass sweep time can be reduced and a high-resolution numerical analysis can be accelerated.

    摘要翻译: 分配给质量选择具有特定质荷比质量的一种离子种类的数值分析时间被划分为第一部分时间和第二部分时间,并且能够空间上减小扩散的偶极子辅助电场是 在数值分析时间的第一部分时间叠加,并且当位置坐标较大时能够快速发射离子的四极辅助电压被叠加在时间的第二部分中。 因此,初始空间扩展在第一部分时间缩短,离子轨迹在第二部分时间内迅速放大,离子发射。 因此,可以减少整个质量扫描时间,并且可以加速高分辨率数值分析。

    Ion trap mass spectrometer
    2.
    发明授权
    Ion trap mass spectrometer 有权
    离子阱质谱仪

    公开(公告)号:US6121610A

    公开(公告)日:2000-09-19

    申请号:US167892

    申请日:1998-10-07

    IPC分类号: G01N27/62 H01J49/42

    CPC分类号: H01J49/424 H01J49/4295

    摘要: By preventing the trapping efficiency of ions from largely depending on the mass-to-charge ratio, an ion trap mass spectrometer suitable for obtaining a high sensitive mass spectrum is provided. Ions of a specimen to be mass analyzed generated at an external ion source pass through an ion transportation portion and then injected into a space (ion trap volume) between the ring electrode and the end cap electrodes. An RF trap voltage power source applies an RF frequency V.multidot.cos .OMEGA.t between the ring electrode and the end cap electrodes to form a radio frequency electric field in the ion trap volume. The RF trap voltage is changed so that the optimum trap frequency is in inverse proportion to 1/2 power of a mass-to-charge ratio while the ions are being trapped in the radio frequency electric field formed in the ion trap volume.

    摘要翻译: 通过防止离子在很大程度上取决于质荷比的捕获效率,提供了适于获得高灵敏质谱的离子阱质谱仪。 在外部离子源处产生的待质量分析的样品的离子通过离子输送部分,然后注入到环形电极和端盖电极之间的空间(离子阱体积)中。 RF陷波电压电源在环形电极和端盖电极之间施加RF频率VxCOS OMEGA t,以在离子阱体积中形成射频电场。 改变RF陷波电压,使得最佳陷波频率与质荷比的1/2功率成反比,同时离子被捕获在形成于离子阱体积中的射频电场中。

    Mass spectrometer ring-shaped electrode having high ion selection
efficiency and mass spectrometry method thereby
    3.
    发明授权
    Mass spectrometer ring-shaped electrode having high ion selection efficiency and mass spectrometry method thereby 失效
    因此,具有高离子选择效率和质谱法的质谱仪环形电极

    公开(公告)号:US5623144A

    公开(公告)日:1997-04-22

    申请号:US598890

    申请日:1996-02-09

    IPC分类号: H01J49/42

    CPC分类号: H01J49/424 H01J49/427

    摘要: A mass spectrometer and a mass spectrometry method having a high ion selection efficiency are provided. The mass spectrometer comprises an ion trap, a sample introducing device, an electron gun, a detector, a power supply for applying voltage to the ion trap, a control device for controlling the power supply and the electron gun, a mass analyzing device for performing mass spectrometry based on a detected signal of the detector. Using an auxiliary power supply, direction of an auxiliary electric field generated between end cap electrodes is made to point only toward the detector. In this occasion, by setting the cycle of the auxiliary voltage near the oscillation cycle of interest ion species in the axial direction, the interest ion species are synchronized with the auxiliary electric field to be certainly unstabilized in the detector side.

    摘要翻译: 提供了具有高离子选择效率的质谱仪和质谱法。 质谱仪包括离子阱,样品引入装置,电子枪,检测器,用于向离子阱施加电压的电源,用于控制电源和电子枪的控制装置,用于执行的质量分析装置 基于检测器的检测信号的质谱。 使用辅助电源,使端帽电极之间产生的辅助电场的方向仅指向检测器。 在这种情况下,通过将辅助电压的周期设定在轴向的兴趣离子种类的振荡周期附近,兴趣离子种类与辅助电场同步,在检测器侧肯定不稳定。

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

    公开(公告)号:US5756993A

    公开(公告)日:1998-05-26

    申请号:US754356

    申请日:1996-11-22

    CPC分类号: H01J49/025 G01N30/72

    摘要: A sample separated through a pre-processor part having a gas chromatography (GC) or a liquid chromatography (LC) and a moving bed eliminating part is ionized by an ion source and mass-analyzed by a mass-analyzing part. The mass-analyzed ions are deflected and focused by a deflecting portion and a focusing portion in a deflecting and focusing part, and is detected by an ion detecting part. The result of detection is processed by a data processing part.

    摘要翻译: 通过具有气相色谱(GC)或液相色谱(LC)和移动床消除部分的预处理器部分分离的样品通过离子源离子化并通过质量分析部分进行质量分析。 质量分析的离子被偏转部分和聚焦部分偏转和聚焦在偏转和聚焦部分中,并由离子检测部分检测。 检测结果由数据处理部分处理。

    Ion trap mass spectrometer and spectrometry
    5.
    发明授权
    Ion trap mass spectrometer and spectrometry 失效
    离子阱质谱仪和光谱仪

    公开(公告)号:US06683303B2

    公开(公告)日:2004-01-27

    申请号:US10087743

    申请日:2002-03-05

    IPC分类号: H01J4942

    CPC分类号: H01J49/424 H01J49/0063

    摘要: An ion trap mass spectrometer and spectrometry capable of dissociating ions to be dissociated efficiently regardless of ionic species without useless time and performing high-sensitive MS/MS spectrometry, lengthens a period for applying a CID voltage in accordance with a mass number or characteristics of ions to be dissociated in proportion to a mass-to-charge ratio of ions to be dissociated to thereby optimize the application period of the supplementary AC voltage applied in superposition manner in order to dissociate specific ionic species, so that ions to be dissociated are dissociated efficiently and high-sensitive analysis of dissociated ions can be attained without useless time.

    摘要翻译: 离子阱质谱仪和光谱测定能够离子离子有效解离而无需离子物质无需时间,并进行高灵敏度的MS / MS光谱测定,延长了根据离子的质量数或特征施加CID电压的时间 要与待离解的离子的质荷比成比例地离解,从而优化以叠加方式施加的辅助AC电压的施加周期,以便解离特定的离子物质,使得要解离的离子有效解离 并且可以在没有无用的时间的情况下获得离解离子的高灵敏度分析。

    Ion trap mass analyzing apparatus
    8.
    发明授权
    Ion trap mass analyzing apparatus 有权
    离子阱质量分析仪

    公开(公告)号:US06977373B2

    公开(公告)日:2005-12-20

    申请号:US10846529

    申请日:2004-05-17

    IPC分类号: G01N27/62 H01J49/40 H01J49/42

    CPC分类号: H01J49/424 H01J49/4255

    摘要: An ion-trap mass analyzing apparatus having means for generating ion-capture electric fields asymmetrical with respect to a reference plane containing a central point of a ring electrode and perpendicular to a central axis of the ring electrode in the inside of an ion trap to resonantly amplify ions rapidly to emit the ions from the ion trap in a short time to thereby permit high-sensitive high-accurate mass analysis stably regardless of the structural stability of ions as a subject of analysis.

    摘要翻译: 一种离子阱质量分析装置,具有用于产生相对于包含环形电极的中心点并垂直于离子阱内部的环形电极的中心轴的参考平面不对称的离子捕获电场的装置,以共振地 在短时间内快速放大离子以从离子阱发射离子,从而允许高灵敏度的高精确质量分析,而不管作为分析对象的离子的结构稳定性如何。

    Ion trap mass analyzing apparatus
    9.
    发明授权
    Ion trap mass analyzing apparatus 有权
    离子阱质量分析仪

    公开(公告)号:US06759652B2

    公开(公告)日:2004-07-06

    申请号:US10252699

    申请日:2002-09-24

    IPC分类号: H01J4942

    CPC分类号: H01J49/424 H01J49/4255

    摘要: An ion-trap mass analyzing apparatus having means for generating ion-capture electric fields asymmetrical with respect to a reference plane containing a central point of a ring electrode and perpendicular to a central axis of the ring electrode in the inside of an ion trap to resonantly amplify ions rapidly to emit the ions from the ion trap in a short time to thereby permit high-sensitive high-accurate mass analysis stably regardless of the structural stability of ions as a subject of analysis.

    摘要翻译: 一种离子阱质量分析装置,具有用于产生相对于包含环形电极的中心点并垂直于离子阱内部的环形电极的中心轴的参考平面不对称的离子捕获电场的装置,以共振地 在短时间内快速放大离子以从离子阱发射离子,从而允许高灵敏度的高精确质量分析,而不管作为分析对象的离子的结构稳定性如何。