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    • 78. 发明专利
    • Time-of-flight mass spectrometer
    • 飞行时间质谱仪
    • JP2011146287A
    • 2011-07-28
    • JP2010006947
    • 2010-01-15
    • Jeol Ltd日本電子株式会社
    • KO JUNKEI
    • H01J49/40G01N27/62H01J49/42
    • H01J49/401H01J49/0031H01J49/427
    • PROBLEM TO BE SOLVED: To provide a time-of-flight mass spectrometer capable of attaining high sensitivity and high throughput for ions having a wide range of mass-to-charge ratios. SOLUTION: An ion transport region 10 of the time-of-flight mass spectrometer stores at least a part of ions produced by an ion source 50. The ion transport region 10 includes a collision cell (ion storage region) 54 for discharging the stored ions in a direction of an optical axis 140 (z-axis), a steady potential region 56 where potential at the time of passing the ions discharged from the collision cell (ion storage region) 54 is fixed, and a variable potential region 57 where potential changes in time so as to increase a potential difference with the steady potential region 56 in case that the ion passed through the steady potential region 56 is incident as the mass-to-charge ratio of the ion is increased. A time-to-flight mass analysis region 60 of the time-of-flight mass spectrometer guides the ions transported via the ion transport region 10 to a detector 160 by accelerating in a direction of an optical axis 141 (x-axis) at designated acceleration timing. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供能够获得具有宽范围的质荷比的离子的高灵敏度和高通量的飞行时间质谱仪。 解决方案:飞行时间质谱仪的离子传输区10存储由离子​​源50产生的离子的至少一部分。离子传输区10包括用于放电的碰撞池(离子存储区)54 在光轴140(z轴)的方向上存储的离子,固定从碰撞电池(离子存储区域)54排出的离子通过时的电位的稳定电位区域56,以及可变电位区域 在离子通过稳定电位区域56的情况下随着离子的质荷比的增加而入射时,电位变化时间增加,以增加与稳定电位区域56的电位差。 飞行时间质谱仪的飞行时间质量分析区域60将通过离子传输区域10输送的离子引导到检测器160,通过沿指定的光轴141(x轴)的方向加速 加速时间。 版权所有(C)2011,JPO&INPIT