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    • 2. 发明授权
    • Curtain gas filter for mass- and mobility-analyzers that excludes ion-source gases and ions of high mobility
    • 用于大规模和移动性分析仪的窗帘气体过滤器,排除离子源气体和高迁移率的离子
    • US08969795B2
    • 2015-03-03
    • US13121065
    • 2009-09-17
    • Hermann WollnikAlexander TarassovGary A. Eiceman
    • Hermann WollnikAlexander TarassovGary A. Eiceman
    • H01J49/00H01J49/04H01J49/10
    • H01J49/0422H01J49/10
    • A filter for a mass- or mobility-spectrometer that bars gases or vapors of a high-pressure ion source, as well as ions of high mobility and charged droplets, from entering an evacuated mass spectrometer or a mobility spectrometer at a lower pressure than the filter. The buffer gas of the high pressure ion source is blown into the volume of this filter directly or through tubes from where buffer gas and embedded ions are sucked through the aperture of a diaphragm or through an aperture of a capillary mainly from an “extraction volume” filled with a separately supplied clean gas, into which ions of interest are pushed by electric fields formed by electrodes that are substantially rotational symmetric around the “extraction volume” and a substantially flat electrode with respect to an axis of ion extraction and the end of the capillary and the end of a coaxial tube surrounding the capillary.
    • 用于质量传感器或迁移率光谱仪的过滤器,其将高压离子源的气体或蒸汽以及高迁移率和带电液滴的离子从比进入真空的质谱仪或迁移率光谱仪低的压力 过滤。 将高压离子源的缓冲气体直接吹入该过滤器的体积,或者通过从缓冲气体和嵌入离子通过隔膜的孔或通过毛细孔的主要从“提取体积”的孔吸入的管, 填充有单独提供的清洁气体,其中感兴趣的离子通过由围绕“提取体积”基本上旋转对称的电极形成的电场和相对于离子提取的轴线的基本平坦的电极被推动, 毛细管和围绕毛细管的同轴管的末端。
    • 3. 发明申请
    • CURTAIN GAS FILTER FOR MASS- AND MOBILITY-ANALYZERS THAT EXCLUDES ION-SOURCE GASES AND IONS OF HIGH MOBILITY
    • 用于质量和运动能力分析仪的窗帘气体过滤器,不包括离子源气体和离子浓度高
    • US20110174966A1
    • 2011-07-21
    • US13121065
    • 2009-09-17
    • Hermann WollnikAlexander TarassovGary A. Eiceman
    • Hermann WollnikAlexander TarassovGary A. Eiceman
    • H01J49/40H01J49/26
    • H01J49/0422H01J49/10
    • A filter for a mass- or mobility-spectrometer that bars gases or vapors of a high-pressure ion source, as well as ions of high mobility and charged droplets, from entering an evacuated mass spectrometer or a mobility spectrometer at a lower pressure than the filter. The buffer gas of the high pressure ion source is blown into the volume of this filter directly or through tubes from where buffer gas and embedded ions are sucked through the aperture of a diaphragm or through an aperture of a capillary mainly from an “extraction volume” filled with a separately supplied clean gas, into which ions of interest are pushed by electric fields formed by electrodes that are substantially rotational symmetric around the “extraction volume” and a substantially flat electrode with respect to an axis of ion extraction and the end of the capillary and the end of a coaxial tube surrounding the capillary.
    • 用于质量传感器或迁移率光谱仪的过滤器,其将高压离子源的气体或蒸汽以及高迁移率和带电液滴的离子从比进入抽真空质谱仪或迁移谱仪的压力低 过滤。 将高压离子源的缓冲气体直接吹入该过滤器的体积,或者通过从缓冲气体和嵌入离子通过隔膜的孔或通过毛细孔的主要从“提取体积”的孔吸入的管, 填充有单独提供的清洁气体,其中感兴趣的离子通过由围绕“提取体积”基本上旋转对称的电极形成的电场和相对于离子提取的轴线的基本平坦的电极被推动, 毛细管和围绕毛细管的同轴管的末端。