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公开(公告)号：US20140014747A1
公开(公告)日：2014-01-16
申请号：US13550061
申请日：2012-07-16
IPC分类号： F23D11/32
CPC分类号： H01J49/10 , H01J49/165 , H01J49/167
摘要： An assembly for use in an electrospray ion source includes a capillary for guiding a flow of liquid generally containing analyte(s) of interest, which is to be electrosprayed into an ionization chamber, a first tube at least partially encasing the capillary such that a first conduit for guiding a first heatable gas is created proximate the capillary and a hollow member that has an internal evacuated space and is located at the outer circumference of the capillary such that heat transfer from the first heatable gas flowing proximate the capillary to the liquid in the capillary is impeded. The assembly provides a simple and lean/compact way of preventing excessive heat transfer to the liquid in the capillary of an electrospray ion source.
摘要翻译： 用于电喷雾离子源的组件包括毛细管，用于引导通常含有目标分析物的液体流，所述分析物将被电喷雾到电离室中，第一管至少部分地封装毛细管，使得第一 在毛细管附近产生用于引导第一可加热气体的导管，以及具有内部抽真空空间并位于毛细管外周的中空构件，使得来自第一可加热气体的热量传递到毛细管附近流到液体中 毛细管受阻。 该组件提供了一种简单且精益/紧凑的方法来防止电喷雾离子源的毛细管中的液体过度传热。
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公开(公告)号：US20050194530A1
公开(公告)日：2005-09-08
申请号：US10796717
申请日：2004-03-08
申请人： Rohan Thakur
发明人： Rohan Thakur
IPC分类号： H01J49/06
CPC分类号： H01J49/067 , H01J49/062
摘要： Systems and components for use in ion transfer in a mass spectrometer. The components include a body having an orifice through which ions can pass, wherein at least a portion of the body comprises titanium metal. Alternatively, the components can include an ion guide into which ions can pass, wherein at least a portion of the ion guide comprises titanium metal. The system has a source of ions for generating ions and a body having an orifice through which ions can pass, wherein at least a portion of the body comprises titanium metal.
摘要翻译： 用于质谱仪离子转移的系统和组件。 这些部件包括具有孔的主体，离子可以穿过该孔，其中主体的至少一部分包括钛金属。 或者，组件可以包括离子可以通过的离子导向器，其中至少一部分离子导向器包括钛金属。 该系统具有用于产生离子的离子源和具有离子可以通过的孔的主体，其中主体的至少一部分包括钛金属。
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公开(公告)号：US08772709B2
公开(公告)日：2014-07-08
申请号：US13550061
申请日：2012-07-16
CPC分类号： H01J49/10 , H01J49/165 , H01J49/167
摘要： An assembly for use in an electrospray ion source includes a capillary for guiding a flow of liquid generally containing analyte(s) of interest, which is to be electrosprayed into an ionization chamber, a first tube at least partially encasing the capillary such that a first conduit for guiding a first heatable gas is created proximate the capillary and a hollow member that has an internal evacuated space and is located at the outer circumference of the capillary such that heat transfer from the first heatable gas flowing proximate the capillary to the liquid in the capillary is impeded. The assembly provides a simple and lean/compact way of preventing excessive heat transfer to the liquid in the capillary of an electrospray ion source.
摘要翻译： 用于电喷雾离子源的组件包括毛细管，用于引导通常含有目标分析物的液体流，所述分析物将被电喷雾到电离室中，第一管至少部分地封装毛细管，使得第一 在毛细管附近产生用于引导第一可加热气体的导管，以及具有内部抽真空空间并位于毛细管外周的中空构件，使得来自第一可加热气体的热传递从毛细管附近流到液体中 毛细管受阻。 该组件提供了一种简单且精益/紧凑的方法来防止电喷雾离子源的毛细管中的液体过度传热。
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公开(公告)号：US07053368B2
公开(公告)日：2006-05-30
申请号：US11071967
申请日：2005-03-04
申请人： Rohan Thakur
发明人： Rohan Thakur
CPC分类号： H01J49/067
摘要： Ion transfer assemblies and methods for directing ions from an ionization source to a mass analyzer. A first partition element separates a viscous flow region from a transition flow region. A second partition element separates the transition flow region into a first transition flow chamber and a second transition flow chamber. A focusing element defines a cavity shaped to direct a portion of a gas flow including ions entrained in a background gas from a first aperture in the first partition element towards a second aperture in the second partition element based on gas dynamics. The cavity is shaped to direct the gas flow without requiring the application of external electrostatic fields. Vents or slits can be provided in or between the first partition element and the focusing element to provide for expansion of the gas flow in the transition flow region.
摘要翻译： 离子转移组件和用于将离子从电离源引导到质量分析器的方法。 第一分隔元件将粘性流动区域与过渡流动区域分离。 第二分隔元件将过渡流动区域分离成第一过渡流动室和第二过渡流动室。 聚焦元件限定了一个空腔，其形状为基于气体动力学将包含在背景气体中的离子的气流的一部分从第一分隔元件中的第一孔引导到第二分隔元件中的第二孔。 空腔成形为引导气流而不需要施加外部静电场。 可以在第一分隔元件和聚焦元件之间或之间提供出气口或狭缝，以提供过渡流动区域中气流的膨胀。
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公开(公告)号：US06872940B1
公开(公告)日：2005-03-29
申请号：US10444790
申请日：2003-05-23
申请人： Rohan Thakur
发明人： Rohan Thakur
CPC分类号： H01J49/067
摘要： Ion transfer assemblies and methods for directing ions from an ionization source to a mass analyzer. A first partition element separates a viscous flow region from a transition flow region. A second partition element separates the transition flow region into a first transition flow chamber and a second transition flow chamber. A focusing element defines a cavity shaped to direct a portion of a gas flow including ions entrained in a background gas from a first aperture in the first partition element towards a second aperture in the second partition element based on gas dynamics. The cavity is shaped to direct the gas flow without requiring the application of external electrostatic fields. Vents or slits can be provided in or between the first partition element and the focusing element to provide for expansion of the gas flow in the transition flow region.
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公开(公告)号：US07009176B2
公开(公告)日：2006-03-07
申请号：US10796717
申请日：2004-03-08
申请人： Rohan Thakur
发明人： Rohan Thakur
IPC分类号： H01J49/06
CPC分类号： H01J49/067 , H01J49/062
摘要： Systems and components for use in ion transfer in a mass spectrometer. The components include a body having an orifice through which ions can pass, wherein at least a portion of the body comprises titanium metal. Alternatively, the components can include an ion guide into which ions can pass, wherein at least a portion of the ion guide comprises titanium metal. The system has a source of ions for generating ions and a body having an orifice through which ions can pass, wherein at least a portion of the body comprises titanium metal.
摘要翻译： 用于质谱仪离子转移的系统和组件。 这些部件包括具有孔的主体，离子可以穿过该孔，其中主体的至少一部分包括钛金属。 或者，组件可以包括离子可以通过的离子导向器，其中至少一部分离子导向器包括钛金属。 该系统具有用于产生离子的离子源和具有离子可以通过的孔的主体，其中主体的至少一部分包括钛金属。
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公开(公告)号：US20050258358A1
公开(公告)日：2005-11-24
申请号：US11128653
申请日：2005-05-13
申请人： Rohan Thakur
发明人： Rohan Thakur
CPC分类号： H01J49/167
摘要： An electrospray interface for forming ions from a liquid sample in a mass analyzing system includes a capillary tube having a free end for introducing a spray of droplets into an ionization chamber, a first gas passageway positioned near the capillary tube for directing a first gas stream into the ionization chamber, and a second gas passageway positioned more remotely from the capillary tube for directing a second, low-velocity gas stream into the ionization chamber. The second gas stream is heated to increase the droplet desolvation rate. A heated sampling capillary having an end extending into the ionization chamber guides the analyte ions toward a mass analyzer and evaporates the solvent from any incompletely desolvated droplets entering the sampling capillary.
摘要翻译： 用于在质量分析系统中从液体样品形成离子的电喷雾界面包括：毛细管，其具有用于将液滴喷射到电离室中的自由端，位于毛细管附近的第一气体通道，用于引导第一气流进入 离子化室和位于更远离毛细管的第二气体通道，用于将第二低速气流导入电离室。 第二气流被加热以增加液滴去溶剂化速率。 具有延伸到电离室中的端部的加热取样毛细管将分析物离子引向质量分析器，并从进入取样毛细管的任何不完全去溶剂的液滴中蒸发溶剂。
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公开(公告)号：US20050151074A1
公开(公告)日：2005-07-14
申请号：US11071967
申请日：2005-03-04
申请人： Rohan Thakur
发明人： Rohan Thakur
CPC分类号： H01J49/067
摘要： Ion transfer assemblies and methods for directing ions from an ionization source to a mass analyzer. A first partition element separates a viscous flow region from a transition flow region. A second partition element separates the transition flow region into a first transition flow chamber and a second transition flow chamber. A focusing element defines a cavity shaped to direct a portion of a gas flow including ions entrained in a background gas from a first aperture in the first partition element towards a second aperture in the second partition element based on gas dynamics. The cavity is shaped to direct the gas flow without requiring the application of external electrostatic fields. Vents or slits can be provided in or between the first partition element and the focusing element to provide for expansion of the gas flow in the transition flow region.
摘要翻译： 离子转移组件和用于将离子从电离源引导到质量分析器的方法。 第一分隔元件将粘性流动区域与过渡流动区域分离。 第二分隔元件将过渡流动区域分离成第一过渡流动室和第二过渡流动室。 聚焦元件限定了一个空腔，其形状为基于气体动力学将包含在背景气体中的离子的气流的一部分从第一分隔元件中的第一孔引导到第二分隔元件中的第二孔。 空腔成形为引导气流而不需要施加外部静电场。 可以在第一分隔元件和聚焦元件之间或之间提供出气口或狭缝，以提供过渡流动区域中气流的膨胀。
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