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    • 2. 发明申请
    • MASS ANALYSER AND METHOD OF MASS ANALYSIS
    • 质量分析仪和质量分析方法
    • WO2012116765A1
    • 2012-09-07
    • PCT/EP2011/066880
    • 2011-09-28
    • SHIMADZU CORPORATIONDING, LiSUDAKOV, MikhailKUMASHIRO, Sumio
    • DING, LiSUDAKOV, MikhailKUMASHIRO, Sumio
    • H01J49/42H01J49/02
    • H01J49/027H01J49/0031H01J49/061H01J49/406H01J49/408H01J49/4245
    • An electrostatic ion trap for mass analysis includes a first array of electrodes and a second array of electrodes, spaced from the first array of electrode. The first and second arrays of electrodes may be planar arrays formed by parallel strip electrodes or by concentric, circular or part-circular electrically conductive rings. The electrodes of the arrays are supplied with substantially the same pattern of voltage whereby the distribution of electrical potential in the space between the arrays is such as to reflect ions isochronously in a flight direction causing them to undergo periodic, oscillatory motion in the space, focused substantially mid-way between the arrays. Amplifier circuitry is used to detect image current having frequency components related to the mass-to-charge ratio of ions undergoing the periodic, oscillatory motion.
    • 用于质量分析的静电离子阱包括第一电极阵列和与第一电极阵列间隔开的第二电极阵列。 第一和第二电极阵列可以是由平行条形电极或同心圆形或部分圆形导电环形成的平面阵列。 阵列的电极被提供有基本相同的电压图案,由此阵列之间的空间中的电位分布使得在飞行方向上等离子地反射离子,使得它们在空间中经历周期性的振荡运动 基本上位于阵列之间。 放大器电路用于检测具有与经历周期性振荡运动的离子的质荷比相关的频率分量的图像电流。
    • 5. 发明申请
    • A TANDEM ION-TRAP TIME-OF-FLIGHT MASS SPECTROMETER
    • TANDEM离子飞行时间质谱仪
    • WO2005083742A2
    • 2005-09-09
    • PCT/GB2005/000671
    • 2005-02-23
    • SHIMADZU RESEARCH LABORATORY (EUROPE) LIMITEDSUDAKOV, MichaelDING, Li
    • SUDAKOV, MichaelDING, Li
    • H01J49/42
    • H01J49/40H01J49/004H01J49/423
    • A tandem linear ion trap and time-of-flight mass spectrometer, where the ion trap has a straight central axis orthogonal to the flight path of the mass spectrometer. The ion trap comprises a set of electrodes, (401, 403, 402, 404) at least one of the electrodes has a slit for ejecting ions towards the mass spectrometer; a set of DC voltage supplies (+V, -V, V1, V2) to provide discrete DC levels and a number of fast electronic switches (409) for connecting/disconnecting the DC supplies to at least two of the electrodes; a neutral gas filling the ion trap and a digital controller to provide a switching procedure of ion trapping, manipulation with ions, cooling and including a state at which all ions are ejected from the ion trap towards the mass spectrometer.
    • 串联线性离子阱和飞行时间质谱仪,其中离子阱具有与质谱仪的飞行路径正交的直的中心轴。 离子阱包括一组电极(401,403,402,404),至少一个电极具有用于向质谱仪喷射离子的狭缝; 一组直流电压源(+ V,-V,V1,V2)以提供离散DC电平以及用于将DC电源连接/断开至少两个电极的多个快速电子开关(409) 填充离子阱的中性气体和数字控制器,以提供离子捕获,用离子的操作,冷却和包括从离子阱向质谱仪喷射所有离子的状态的切换过程。