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1. 发明授权

US08969795B2 Curtain gas filter for mass- and mobility-analyzers that excludes ion-source gases and ions of high mobility 有权
标题翻译：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
公开(公告)号：US08969795B2
公开(公告)日：2015-03-03
申请号：US13121065
申请日：2009-09-17
申请人： Hermann Wollnik , Alexander Tarassov , Gary A. Eiceman
发明人： Hermann Wollnik , Alexander Tarassov , Gary A. Eiceman
IPC分类号： H01J49/00 , H01J49/04 , H01J49/10
CPC分类号： H01J49/0422 , H01J49/10
摘要： 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.
摘要翻译：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。

2. 发明申请

US20110174966A1 CURTAIN GAS FILTER FOR MASS- AND MOBILITY-ANALYZERS THAT EXCLUDES ION-SOURCE GASES AND IONS OF HIGH MOBILITY 有权
标题翻译：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
公开(公告)号：US20110174966A1
公开(公告)日：2011-07-21
申请号：US13121065
申请日：2009-09-17
申请人： Hermann Wollnik , Alexander Tarassov , Gary A. Eiceman
发明人： Hermann Wollnik , Alexander Tarassov , Gary A. Eiceman
IPC分类号： H01J49/40 , H01J49/26
CPC分类号： H01J49/0422 , H01J49/10
摘要： 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.
摘要翻译：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。

3. 发明授权

US5736739A Recirculating filtration system for use with a transportable ion mobility spectrometer in gas chromatography applications 失效
标题翻译：循环过滤系统，用于气相色谱应用中的可移动离子迁移谱仪
公开(公告)号：US5736739A
公开(公告)日：1998-04-07
申请号：US726843
申请日：1996-10-08
申请人： Robert E. Uber , Viktor Kouznetsov , Alexander Tarassov , Byron L. Carnahan , Charles W. Pipich
发明人： Robert E. Uber , Viktor Kouznetsov , Alexander Tarassov , Byron L. Carnahan , Charles W. Pipich
IPC分类号： G01N27/64 , H01J49/40 , H01J49/04
CPC分类号： G01N27/622 , G01N30/7206
摘要： Generally, the present invention provides a recirculating filtration system for use with a transportable ion mobility spectrometer in gas chromatography applications. The transportable recirculating filtration system comprises a pump and a set of filters and flow sensors connected to an ion mobility spectrometry sensor having a gas chromatograph column at its inlet. The IMS sensor's outlet flow is cleaned by the filters and recirculated by the pump back into the IMS sensor as the carrier fluid stream flow. A portion of the IMS sensor's outlet flow equal to the amount of flow introduced into the sensor as the sample is exhausted from the filtration system to maintain a constant total flow volume through the system as the sample is being analyzed. Preferably, the multicapillary column is sealed to a heated transfer line leading to the sample stream inlet of the IMS sensor. The transfer line is preferably maintained at a temperature 10.degree. C.-40.degree. C. above that of the multicapillary column in order to ensure that analyte species will not adsorb on the walls of the transfer line instead of entering the sample stream inlet of the IMS sensor. The transfer line can be optionally configured with a flow smoothing insert to produce a laminar flow profile throughout the volume between the transfer line outlet end and the IMS sensor housing upon exit of the carrier flow stream from the flow smoothing insert.
摘要翻译：通常，本发明提供了一种在气相色谱应用中与可运输离子迁移谱仪一起使用的再循环过滤系统。可运输的循环过滤系统包括泵和一组连接到其入口处具有气相色谱柱的离子迁移谱传感器的过滤器和流量传感器。 IMS传感器的出口流被过滤器清洁，并随着载体流体流的流动而被泵再循环回到IMS传感器中。随着样品从过滤系统排出，IMS传感器的出口流的一部分等于引入传感器的流量，以便在分析样品时保持通过系统的恒定总流量。优选地，多毛细管柱被密封到通向IMS传感器的样品流入口的加热的输送管线。传输线优选保持在高于多毛细管柱的温度10℃-40℃的温度下，以确保分析物种不会吸附在输送管线的壁上，而不是进入 IMS传感器。输送管线可以可选地配置有流动平滑插入件，以在从流动平滑插入件离开载体流动流时，在传送线出口端和IMS传感器外壳之间的整个体积中产生层流分布。

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