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    • 83. 发明申请
    • Laser Ionization Mass Spectroscope
    • 激光电离质谱仪
    • US20070272849A1
    • 2007-11-29
    • US10593091
    • 2005-03-15
    • Naotoshi KiriharaNorifumi KitadaKenji TakahashiHaruaki YoshidaMizuho TanakaYasuo Suzuki
    • Naotoshi KiriharaNorifumi KitadaKenji TakahashiHaruaki YoshidaMizuho TanakaYasuo Suzuki
    • H01J49/26
    • H01J49/162H01J49/0422H01J49/40
    • The invention provides an ultra-sonic jet multi-photon resonance ionization type mass analyzing device. The laser beam ionization mass analyzing device includes a pulsed gas ejecting device 12 for ejecting in pulse mode carrier gas containing sample molecules into a vacuum vessel 17, a laser beam irradiation system for irradiating laser beam for selective photo-reaction of sample molecules in said pulsed gas, repeller and extraction electrodes 18 and 19 generating an electric field for extraction of sample molecular ions generated by the photo reaction and a mass analyzing device 26 for mass analysis of extracted sample molecular ions. The laser beam irradiation system is set to irradiate laser beam to sample molecules near a position whereat a pressure time distribution of pulsed gas translating in the vacuum vessel 17 transitions from a flat-top pressure distribution to a triangular pressure distribution.
    • 本发明提供超声波喷射多光子共振电离型质量分析装置。 激光束离子化质量分析装置包括:脉冲气体喷射装置12,用于以脉冲模式将含有样品分子的载气喷射到真空容器17中;激光束照射系统,用于照射激光束用于所述脉冲的样品分子的选择性光反应 产生用于提取由光反应产生的样品分子离子的电场的气体,推斥器和引出电极18和19,以及用于质量分析提取的样品分子离子的质量分析装置26。 设置激光束照射系统以将激光束照射到在真空容器17中平移的脉冲气体的压力时间分布从平顶压力分布转换到三角形压力分布的位置附近的样品分子。