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1.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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2.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：US07470899B2
公开(公告)日：2008-12-30
申请号：US11641451
申请日：2006-12-18
IPC分类号： H01J49/26
CPC分类号： H01J49/0404
摘要： An ion source includes an ion transfer tube having two segments for transporting a sample fluid containing ions between a first chamber and a second chamber maintained at a reduced pressure relative to the first chamber. A first segment may include a plurality of channels and heat conductive walls forming the plurality of channels. The plurality of channels and walls forming the channels promote efficient convective heat transfer to the sample fluid, thereby enabling operation at relatively high sample fluid flow rates, resulting in an increase in the number of ions that may be delivered to a mass analyzer. A second segment forms a single common channel that receives a plurality of sample streams and enables them to combine into a single ion stream that may be introduced as a single gas stream expansion into the second chamber.
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公开(公告)号：US20080142698A1
公开(公告)日：2008-06-19
申请号：US11641451
申请日：2006-12-18
IPC分类号： H01J49/26
CPC分类号： H01J49/0404
摘要： An ion source includes an ion transfer tube having two segments for transporting a sample fluid containing ions between a first chamber and a second chamber maintained at a reduced pressure relative to the first chamber. A first segment may include a plurality of channels and heat conductive walls forming the plurality of channels. The plurality of channels and walls forming the channels promote efficient convective heat transfer to the sample fluid, thereby enabling operation at relatively high sample fluid flow rates, resulting in an increase in the number of ions that may be delivered to a mass analyzer. A second segment forms a single common channel that receives a plurality of sample streams and enables them to combine into a single ion stream that may be introduced as a single gas stream expansion into the second chamber.
摘要翻译： 离子源包括离子传递管，其具有两个段，用于在第一腔室和第二腔室之间输送含有离子的样品流体，所述第一腔室和第二腔室相对于第一腔室保持减压。 第一段可以包括形成多个通道的多个通道和导热壁。 形成通道的多个通道和壁促进对样品流体的有效的对流热传递，从而使得能够以相对高的样品流体流速进行操作，导致可以递送到质量分析器的离子数量的增加。 第二段形成单个公共通道，其接收多个样品流并且使得它们能够组合成单个离子流，所述单个离子流可以作为单个气体流膨胀引入第二室。
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公开(公告)号：US07781728B2
公开(公告)日：2010-08-24
申请号：US12125013
申请日：2008-05-21
申请人： Michael W. Senko , Viatcheslav V. Kovtoun , Paul R. Atherton , Jean Jacques Dunyach , Eloy R. Wouters , Maurizio Splendore , William Siebert
发明人： Michael W. Senko , Viatcheslav V. Kovtoun , Paul R. Atherton , Jean Jacques Dunyach , Eloy R. Wouters , Maurizio Splendore , William Siebert
CPC分类号： H01J49/065 , H01J3/14 , H01J49/066
摘要： A device for transporting and focusing ions in a low vacuum or atmospheric-pressure region of a mass spectrometer is constructed from a plurality of longitudinally spaced apart electrodes to which oscillatory (e.g., radio-frequency) voltages are applied. In order to create a tapered field that focuses ions to a narrow beam near the device exit, the inter-electrode spacing or the oscillatory voltage amplitude is increased in the direction of ion travel.
摘要翻译： 用于在质谱仪的低真空或大气压区域中输送和聚焦离子的装置由多个纵向间隔开的电极构成，施加振荡（例如，射频）电压。 为了创建将离子聚焦到设备出口附近的窄波束的锥形场，电离间隔或振荡电压振幅在离子行进方向上增加。
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公开(公告)号：US20090045062A1
公开(公告)日：2009-02-19
申请号：US12125013
申请日：2008-05-21
申请人： Michael W. Senko , Viatcheslav V. Kovtoun , Paul R. Atherton , Jean Jacques Dunyach , Eloy R. Wouters , Maurizio Splendore , William Siebert
发明人： Michael W. Senko , Viatcheslav V. Kovtoun , Paul R. Atherton , Jean Jacques Dunyach , Eloy R. Wouters , Maurizio Splendore , William Siebert
CPC分类号： H01J49/065 , H01J3/14 , H01J49/066
摘要： A device for transporting and focusing ions in a low vacuum or atmospheric-pressure region of a mass spectrometer is constructed from a plurality of longitudinally spaced apart electrodes to which oscillatory (e.g., radio-frequency) voltages are applied. In order to create a tapered field that focuses ions to a narrow beam near the device exit, the inter-electrode spacing or the oscillatory voltage amplitude is increased in the direction of ion travel.
摘要翻译： 用于在质谱仪的低真空或大气压区域中输送和聚焦离子的装置由多个纵向间隔开的电极构成，施加振荡（例如，射频）电压。 为了创建将离子聚焦到设备出口附近的窄波束的锥形场，电离间隔或振荡电压振幅在离子行进方向上增加。
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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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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：US07741600B2
公开(公告)日：2010-06-22
申请号：US11601343
申请日：2006-11-17
IPC分类号： H01J49/00
CPC分类号： H01J49/067 , H01J49/044
摘要： A method and apparatus for directing ions from an ionization source to a mass analyzer is provided. The method includes producing ions from a sample in an ionization source. Some of the ions are transferred to a first region via a passageway that is in fluid communication with the ionization source. Next, some of the ions are sampled from the first region into a second region via an aperture that is defined thorough a partition element. The aperture is centered about a longitudinal axis that passes through an ion transfer element within the second region. An electric field is established for deflecting some of the ions that pass through the aperture of the partition element. In particular, the electric field is directed transverse to the longitudinal axis such that relatively more ions enter an input end of the ion transfer element compared to when the ions are not deflected.
摘要翻译： 提供了用于将离子从电离源引导到质量分析器的方法和装置。 该方法包括从电离源中的样品产生离子。 一些离子通过与电离源流体连通的通道转移到第一区域。 接下来，一些离子通过经过分隔元件定义的孔从第一区域采样到第二区域。 孔围绕穿过第二区域内的离子转移元件的纵向轴线居中。 建立电场以偏转通过分隔元件的孔的一些离子。 特别地，电场横向于纵向轴线，使得相对较多的离子进入离子转移元件的输入端，与离子没有偏转时相比较。
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公开(公告)号：US20080116371A1
公开(公告)日：2008-05-22
申请号：US11601343
申请日：2006-11-17
IPC分类号： H01J49/04
CPC分类号： H01J49/067 , H01J49/044
摘要： A method and apparatus for directing ions from an ionization source to a mass analyzer is provided. The method includes producing ions from a sample in an ionization source. Some of the ions are transferred to a first region via a passageway that is in fluid communication with the ionization source. Next, some of the ions are sampled from the first region into a second region via an aperture that is defined thorough a partition element. The aperture is centered about a longitudinal axis that passes through an ion transfer element within the second region. An electric field is established for deflecting some of the ions that pass through the aperture of the partition element. In particular, the electric field is directed transverse to the longitudinal axis such that relatively more ions enter an input end of the ion transfer element compared to when the ions are not deflected.
摘要翻译： 提供了用于将离子从电离源引导到质量分析器的方法和装置。 该方法包括从电离源中的样品产生离子。 一些离子通过与电离源流体连通的通道转移到第一区域。 接下来，一些离子通过经过分隔元件定义的孔从第一区域采样到第二区域。 孔围绕穿过第二区域内的离子转移元件的纵向轴线居中。 建立电场以偏转通过分隔元件的孔的一些离子。 特别地，电场横向于纵向轴线，使得相对较多的离子进入离子转移元件的输入端，与离子没有偏转时相比较。
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