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    • 4. 发明申请
    • TANDEM FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETER
    • TANDEM FOURIER变换离子循环共振质谱仪
    • WO2007091754A1
    • 2007-08-16
    • PCT/KR2006/003618
    • 2006-09-12
    • KOREA BASIC SCIENCE INSTITUTEKIM, Hyun SikCHOI, Myoung ChoulYOO, Jong Shin
    • KIM, Hyun SikCHOI, Myoung ChoulYOO, Jong Shin
    • G01N27/62
    • G01N27/62
    • A tandem Fourier transform ion cyclotron resonance mass spectrometer is provided. In the mass spectrometer, the ions selected by a FT-ICR mass analyzer, which can perform an ion selection process and a mass measurement process with a time interval between the processes, are transmitted through an ion guide to a collision cell, which is located a predetermined distance from the FT-ICR mass analyzer, to split into fragment ions. The fragment ions are transmitted to the FT-ICR mass analyzer that measures the mass of the fragment ions. The fragment ions are generated in the collision cell 60 established separately from the FT- ICR mass analyzer 40 according to the mass spectrometer. Accordingly, It can solve various problems (e.g., the radius reduction of cyclotron motion of colliding ions, or the removal of periphery gas after generating the fragment ions) occurred in a tandem mass spectrometer using a conventional tandem-in-time mass analysis method. Also, a high resolution and hith sensitivity measurement can be achieved. Moreover, when a reagent gas instead of a collision gas in the collision cell is injected, the gas phase reaction of the selected ions and the reagent gas can be observed, and the mass of the ions generated in the gas phase reaction can be measured.
    • 提供了一种串联傅里叶变换离子回旋共振质谱仪。 在质谱仪中,可以进行离子选择处理的FT-ICR质量分析器选择的离子和在处理之间的时间间隔的质量测量过程通过离子导向器传输到位于 距离FT-ICR质量分析器预定的距离,以分裂为碎片离子。 碎片离子传输到测量碎片离子质量的FT-ICR质量分析仪。 在根据质谱仪与FT-ICR质量分析器40分开设置的碰撞单元60中产生碎片离子。 因此,可以使用常规的串联质量分析方法来解决在串联质谱仪中发生的各种问题(例如,产生碰撞离子的回旋加速器运动的半径减小或产生碎片离子之后的外围气体的去除)。 此外,可以实现高分辨率和高灵敏度测量。 此外,当注入反应气体代替碰撞气体中的碰撞气体时,可以观察到所选择的离子和反应气体的气相反应,并且可以测量在气相反应中产生的离子的质量。
    • 7. 发明申请
    • 3-DIMENSIONAL DIFFERENTIAL PUMPING SYSTEM AND METHOD THEREOF
    • 三维差分泵送系统及其方法
    • WO2008054093A1
    • 2008-05-08
    • PCT/KR2007/005304
    • 2007-10-26
    • KOREAN BASIC SCIENCE INSTITUTECHOI, Myoung ChoulYOO, Jong ShinKIM, Hyun Sik
    • CHOI, Myoung ChoulYOO, Jong ShinKIM, Hyun Sik
    • G01N27/62
    • G01N27/622H01J49/067H01J49/24H01J49/38
    • A differential pumping system in which a vacuum chamber is manufactured to have a plurality of vacuum pumps and conductance limit plates between the vacuum pumps. The dif¬ ferential pumping system in which an ion is implanted from an ionization source, passes through the vacuum chamber and is detected by a detection unit includes a plurality of vacuum pumps in the vacuum chamber and one or more conductance limit plates between the vacuum pumps, and the conductance limit plates form an angle less than 90° with the transmission direction of the ion. According to such a constitution, higher degree of vacuum and the ion transmission efficiency are maintained without increasing the length of the vacuum chamber. Furthermore, it is possible to minimize the attenuation of an ion detection signal due to a collision with a neighboring neutral molecule, improving the sensitivity of an ion detection device.
    • 一种差分泵送系统,其中制造真空室以在真空泵之间具有多个真空泵和电导限制板。 其中从离子源注入离子的差分泵送系统通过真空室并由检测单元检测,包括真空室中的多个真空泵和真空泵之间的一个或多个导电极限板 ,并且电导极限板与离子的透射方向形成小于90°的角度。 根据这种结构,在不增加真空室的长度的情况下,保持更高的真空度和离子传递效率。 另外,由于与邻近的中性分子发生碰撞,能够使离子检测信号的衰减最小化,能够提高离子检测装置的灵敏度。