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    • 9. 发明专利
    • Laser desorption device, mass spectrometer assembly, and environmental liquid mass spectrometry method
    • 激光解吸装置,质谱仪组件和环境液体质谱法
    • JP2008147165A
    • 2008-06-26
    • JP2007253798
    • 2007-09-28
    • National Sun Yat-Sen Univ国立中山大学National Sun Yat−Sen University
    • SHIEA JENTAIEYUAN CHENG-HUI
    • H01J49/16G01N27/62H01J49/26
    • H01J49/145H01J49/0431H01J49/0463H01J49/165
    • PROBLEM TO BE SOLVED: To provide a laser desorption device, a mass spectrometer assembly and a mass spectrometry method in which a mass spectrometry of a liquid test piece can be carried out directly under an atmospheric pressure. SOLUTION: The electro-spray assisted laser desorption device for irradiating laser to a testpiece is provided with an electro-spray unit with a nozzle, a voltage supplying part which is arranged between the nozzle and a receiving unit and in which solvent drops for the electro-spray formed by the nozzle are charged and a potential difference is created forcibly toward the receiving unit from the nozzle alongside a transfer passage. Desorption of an analyzing object contained in the testpiece is conducted when laser is irradiated and it flies alongside a flying passage which crosses the transfer passage and is confined in the polyvalent charged drops and is transferred alongside the transfer passage and a size of the drop becomes smaller gradually, and an electric charge of the drop is transferred to least one of the analyzing objects confined in the drop and an ionized analyzing object is formed. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种激光解吸装置,质谱仪组合和质谱法,其中液体试样的质谱可以在大气压下直接进行。 解决方案:用于向激光束照射激光的电喷激光辅助激光解吸装置设置有具有喷嘴的电喷单元,设置在喷嘴和接收单元之间的电压供给部,其中溶剂滴 对于由喷嘴形成的电喷雾进行充电,并且从传送通道旁边的喷嘴强制地向接收单元产生电位差。 包含在试件中的分析对象的解吸是在激光照射时进行的,并且与穿过传送通道的飞行通道一起飞行并被限制在多价带电的液滴中并且沿传送通道传送并且液滴的尺寸变小 并且将液滴的电荷转移到限制在液滴中的分析对象中的至少一个,并且形成电离分析对象。 版权所有(C)2008,JPO&INPIT