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公开(公告)号：US20080067365A1
公开(公告)日：2008-03-20
申请号：US11454263
申请日：2006-06-16
IPC分类号： H01J49/00
CPC分类号： H01J49/063
摘要： An ion guide having a plurality of spheroidal or similarly shaped electrodes is disclosed. The electrodes are arranged in pairs about a central ion flow axis, and an RF voltage is applied in a prescribed phase relation to create an electric field that focuses and radially confines an ion beam. A defocusing effect associated with the electrode shape may be reduced by placement of a separate skirt electrode immediately downstream in the ion path, or by forming the electrodes in a composite structure, whereby the trailing portion of the electrode is fabricated from or coated with an insulative material.
摘要翻译： 公开了具有多个球状或类似形状的电极的离子导向器。 电极围绕中心离子流动轴成对排列，并以规定的相位关系施加RF电压以产生聚焦并径向限制离子束的电场。 与电极形状相关联的散焦效应可以通过将离散路径中的下游的单独的裙部电极放置在复合结构中，或者通过在复合结构中形成电极来减少，由此电极的后部由绝缘体制成或涂覆 材料。
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2.发明申请Apparatus and method for a multi-stage ion transfer tube assembly for use with mass spectrometry 审中-公开用于质谱联用的多级离子转移管组件的装置和方法公开(公告)号：US20080116370A1
公开(公告)日：2008-05-22
申请号：US11601282
申请日：2006-11-17
IPC分类号： H01J49/04
CPC分类号： H01J49/0404 , Y10T137/8593
摘要： An apparatus and method for introducing ions into a vacuum chamber of a mass spectrometer includes producing ions in an ionization chamber of an ion source. The ions are sampled into an intermediate pressure chamber via a first ion transfer tube. In particular, the pressure within the intermediate pressure chamber is maintained at a value that exceeds a maximum pressure for being sampled into the vacuum chamber of the mass spectrometer. Some of the ions are sampled from the intermediate pressure chamber via at least a second ion transfer tube, the at least a second ion transfer tube having an outlet end that is in communication with a low-pressure chamber. In particular, the pressure within the low-pressure chamber is maintained at a value that is less than a maximum pressure for being sampled into the vacuum chamber of the mass spectrometer. Some of the ions are sampled from the low-pressure chamber into the vacuum chamber of the mass spectrometer.
摘要翻译： 将离子引入质谱仪的真空室的装置和方法包括在离子源的离子化室中产生离子。 离子通过第一离子转移管被采样到中间压力室中。 特别地，中压室内的压力保持在超过质量分析仪的真空室中的最大压力值。 一些离子通过至少一个第二离子转移管从中间压力室中取样，该至少一个第二离子转移管具有与低压室连通的出口端。 特别地，低压室内的压力保持在小于将被采样到质谱仪的真空室中的最大压力的值。 一些离子从低压室取样到质谱仪的真空室中。
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3.发明授权Apparatus and method for a multi-stage ion transfer tube assembly for use with mass spectrometry 有权用于质谱联用的多级离子转移管组件的装置和方法公开(公告)号：US08642946B2
公开(公告)日：2014-02-04
申请号：US13656595
申请日：2012-10-19
IPC分类号： H01J49/00
CPC分类号： H01J49/0404 , Y10T137/8593
摘要： An apparatus and method for introducing ions into a vacuum chamber of a mass spectrometer includes producing ions in an ionization chamber of an ion source. The ions are sampled into an intermediate pressure chamber via a first ion transfer tube. In particular, the pressure within the intermediate pressure chamber is maintained at a value that exceeds a maximum pressure for being sampled into the vacuum chamber of the mass spectrometer. Some of the ions are sampled from the intermediate pressure chamber via at least a second ion transfer tube, the at least a second ion transfer tube having an outlet end that is in communication with a low-pressure chamber. In particular, the pressure within the low-pressure chamber is maintained at a value that is less than a maximum pressure for being sampled into the vacuum chamber of the mass spectrometer. Some of the ions are sampled from the low-pressure chamber into the vacuum chamber of the mass spectrometer.
摘要翻译： 将离子引入质谱仪的真空室的装置和方法包括在离子源的离子化室中产生离子。 离子通过第一离子转移管被采样到中间压力室中。 特别地，中压室内的压力保持在超过质量分析仪的真空室中的最大压力值。 一些离子通过至少一个第二离子转移管从中间压力室中取样，该至少一个第二离子转移管具有与低压室连通的出口端。 特别地，低压室内的压力保持在小于将被采样到质谱仪的真空室中的最大压力的值。 一些离子从低压室取样到质谱仪的真空室中。
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公开(公告)号：US07491932B2
公开(公告)日：2009-02-17
申请号：US11454263
申请日：2006-06-16
CPC分类号： H01J49/063
摘要： An ion guide having a plurality of spheroidal or similarly shaped electrodes is disclosed. The electrodes are arranged in pairs about a central ion flow axis, and an RF voltage is applied in a prescribed phase relation to create an electric field that focuses and radially confines an ion beam. A defocusing effect associated with the electrode shape may be reduced by placement of a separate skirt electrode immediately downstream in the ion path, or by forming the electrodes in a composite structure, whereby the trailing portion of the electrode is fabricated from or coated with an insulative material.
摘要翻译： 公开了具有多个球状或类似形状的电极的离子导向器。 电极围绕中心离子流动轴成对排列，并以规定的相位关系施加RF电压以产生聚焦并径向限制离子束的电场。 与电极形状相关联的散焦效应可以通过将离散路径中的下游的单独的裙部电极放置在复合结构中，或者通过在复合结构中形成电极来减少，由此电极的后部由绝缘体制成或涂覆 材料。
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公开(公告)号：US07145138B1
公开(公告)日：2006-12-05
申请号：US11143193
申请日：2005-06-01
申请人： Rohan A. Thakur
发明人： Rohan A. Thakur
IPC分类号： H01J49/00
CPC分类号： H01J49/145
摘要： An atmospheric pressure ionization source is provided. The atmospheric pressure ionization source comprises a chamber housing, a spray probe that produces a spray cone along a spray axis within the chamber, and an exhaust port opposite the spray probe on the housing. The exhaust port includes at least two segments, a first segment of the exhaust port is disposed between a second segment and an opening through the housing that receives the spray cone. The first segment defines a first axis that is co-axial with the spray axis, and the second segment defines a second axis that is angled relative to the first axis.
摘要翻译： 提供大气压电离源。 大气压电离源包括腔室，喷射探针，其沿着腔室内的喷射轴线产生喷雾锥体，以及与壳体上的喷雾探针相对的排气口。 排气口包括至少两个区段，排气口的第一区段设置在第二区段和穿过容纳喷雾锥体的壳体的开口之间。 第一段限定与喷射轴线同轴的第一轴线，第二段限定相对于第一轴线成角度的第二轴线。
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公开(公告)号：US07199364B2
公开(公告)日：2007-04-03
申请号：US11128653
申请日：2005-05-13
申请人： Rohan A. Thakur
发明人： Rohan A. Thakur
IPC分类号： H01J49/44
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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