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公开(公告)号：US09086426B2
公开(公告)日：2015-07-21
申请号：US13611631
申请日：2012-09-12
申请人： Yan Liu , Petr Jandik , Christopher A. Pohl
发明人： Yan Liu , Petr Jandik , Christopher A. Pohl
IPC分类号： B01D15/08 , C25B9/18 , F17D1/00 , G01N30/00 , G01N30/04 , G01N30/96 , G01N30/34 , B01D15/16 , B01D15/36 , B01D61/44
CPC分类号： C25B9/18 , B01D15/166 , B01D15/361 , B01D61/44 , C25B1/02 , C25B1/14 , C25B3/00 , C25B13/00 , G01N30/16 , G01N30/34 , G01N30/96 , G01N2030/965 , Y02E60/34 , Y10T137/0318
摘要： A system and method to generate a concentration gradient eluent flow are described. The concentration gradient eluent flow can include at least two different generants. A liquid can be pumped to an eluent generating device. A first controlling signal can be applied to a first eluent generator to generate a first generant. A second controlling signal can be applied to a second eluent generator to generate a second generant. Either the first and/or the second controlling signal can be varied as a function of time to generate the concentration gradient eluent flow.
摘要翻译： 描述了产生浓度梯度洗脱流的系统和方法。 浓度梯度洗脱液流可以包括至少两种不同的生成剂。 液体可以泵送到洗脱液生成装置。 第一控制信号可以应用于第一洗脱液发生器以产生第一发生器。 第二控制信号可以应用于第二淋洗液发生器以产生第二发生器。 第一和/或第二控制信号可以作为时间的函数而变化以产生浓度梯度洗脱液流。
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公开(公告)号：US08414684B2
公开(公告)日：2013-04-09
申请号：US12791732
申请日：2010-06-01
申请人： Yan Liu , Christopher A. Pohl , Michael McAdams , Hamish Small , Zhongqing Lu , Milton Liu , Khosro Moshfegh
发明人： Yan Liu , Christopher A. Pohl , Michael McAdams , Hamish Small , Zhongqing Lu , Milton Liu , Khosro Moshfegh
CPC分类号： B01D19/0073 , B01D19/0031 , B01D19/0036 , G01N30/32 , G01N30/96 , G01N2030/146
摘要： A degas assembly including a low pressure fluid channel for carrying a wash fluid at a first pressure, a pressurized channel for carrying eluent including a gas at a second pressure higher than the first pressure, and a degas separator defining a fluid barrier between the low pressure fluid channel and pressurized fluid channel, the separator configured to retain liquid in the pressurized fluid channel and allow gas to flow through the separator to the low pressure fluid channel. The pressurized fluid channel may extend along an outer periphery of the low pressure fluid channel. The eluent may be received from an eluent generator at a pressure of at least about 3300 psi, and in various embodiments up to about 5000 psi. A liquid chromatography system and method are also disclosed.
摘要翻译： 一种脱气组件，包括用于在第一压力下承载洗涤流体的低压流体通道，用于承载包含在高于第一压力的第二压力的气体的洗脱液的加压通道，以及限定低压下的流体阻挡层的脱气分离器 流体通道和加压流体通道，分离器构造成将液体保持在加压流体通道中并允许气体通过分离器流动到低压流体通道。 加压流体通道可以沿着低压流体通道的外周延伸。 洗脱液可以在至少约3300psi的压力下从洗脱液发生器接收，并且在各种实施方案中可高达约5000psi。 还公开了液相色谱系统和方法。
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公开(公告)号：US08216515B2
公开(公告)日：2012-07-10
申请号：US10944442
申请日：2004-09-16
IPC分类号： G01N3/02
CPC分类号： B01D15/363 , B01D15/361 , B01D15/367 , G01N30/96 , G01N2030/965
摘要： An apparatus for capillary ion chromatography having a suppressor having flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
摘要翻译： 一种用于毛细管离子色谱的装置，其具有在壳体中具有流过离子交换填料的抑制器和由选择性选择性离子交换膜形成的至少部分地设置在所述离子交换填料中的毛细管。 另外，从检测器到包装的水性液体循环管道。 此外，毛细管可具有弱酸性或弱碱性官能团。 另外，使用该装置的方法。
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公开(公告)号：US20110290726A1
公开(公告)日：2011-12-01
申请号：US12791732
申请日：2010-06-01
申请人： Yan Liu , Christopher A. Pohl , Michael McAdams , Hamish Small , Zhongqing Lu , Milton Liu , Khosro Moshfegh
发明人： Yan Liu , Christopher A. Pohl , Michael McAdams , Hamish Small , Zhongqing Lu , Milton Liu , Khosro Moshfegh
IPC分类号： B01D19/00
CPC分类号： B01D19/0073 , B01D19/0031 , B01D19/0036 , G01N30/32 , G01N30/96 , G01N2030/146
摘要： A degas assembly including a low pressure fluid channel for carrying a wash fluid at a first pressure, a pressurized channel for carrying eluent including a gas at a second pressure higher than the first pressure, and a degas separator defining a fluid barrier between the low pressure fluid channel and pressurized fluid channel, the separator configured to retain liquid in the pressurized fluid channel and allow gas to flow through the separator to the low pressure fluid channel. The pressurized fluid channel may extend along an outer periphery of the low pressure fluid channel. The eluent may be received from an eluent generator at a pressure of at least about 3300 psi, and in various embodiments up to about 5000 psi. A liquid chromatography system and method are also disclosed.
摘要翻译： 一种脱气组件，包括用于在第一压力下承载洗涤流体的低压流体通道，用于承载包含在高于第一压力的第二压力的气体的洗脱液的加压通道，以及限定低压下的流体阻挡层的脱气分离器 流体通道和加压流体通道，分离器构造成将液体保持在加压流体通道中并允许气体通过分离器流动到低压流体通道。 加压流体通道可以沿着低压流体通道的外周延伸。 洗脱液可以在至少约3300psi的压力下从洗脱液发生器接收，并且在各种实施方案中可高达约5000psi。 还公开了液相色谱系统和方法。
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公开(公告)号：US20110174737A1
公开(公告)日：2011-07-21
申请号：US13075009
申请日：2011-03-29
IPC分类号： B01D15/08
CPC分类号： B01D15/10 , G01N30/26 , G01N30/96 , G01N2030/965
摘要： A chromatographic method including chromatographically separating sample ionic species in an eluent stream, detecting the separated sample ionic species, catalytically combining hydrogen and oxygen gases or catalytically decomposing hydrogen peroxide in a catalytic gas elimination chamber, and recycling the effluent stream from the chamber to the chromatography separation column. The residence time between the detector and the chamber is at least about one minute. Also, flowing the recycle sequentially through two detector effluent flow channels of an electrolytic membrane suppressor. Also, applying heat or UV energy between the detector and the chamber. Also, detecting bubbles after the chamber. Also, a Platinum group metal catalyst and ion exchange medium in the chamber. Apparatus for performing the methods.
摘要翻译： 一种色谱方法，包括在洗脱液流中色谱分离样品离子物质，检测分离的样品离子物质，催化结合氢气和氧气，或催化分解催化气体消除室中的过氧化氢，并将来自室的流出物流再循环至色谱 分离柱。 检测器和腔室之间的停留时间至少约1分钟。 此外，使循环物依次流过电解膜抑制器的两个检测器流出物流动通道。 此外，在检测器和室之间施加热或UV能量。 另外，在室后检测气泡。 此外，铂族金属催化剂和离子交换介质在室内。 用于执行方法的装置。
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公开(公告)号：US20090101582A1
公开(公告)日：2009-04-23
申请号：US12337435
申请日：2008-12-17
IPC分类号： B01D15/36
CPC分类号： G01N30/96 , G01N2030/965
摘要： A suppressed ion chromatographic apparatus using a regenerant recycle loop, comprising (a) an ion separation device, (b) a membrane suppressor, (c) a detector, (d) a container for regenerant solution, (e) a first conduit between the ion separation device and the suppressor, (f) a second conduit between the regenerant solution container and the suppressor, (g) a third conduit between the suppressor and the regenerant solution container, and (h) a regenerant solution recycle loop out of fluid communication with the detector outlet.
摘要翻译： 一种使用再生剂循环回路的抑制离子色谱装置，包括（a）离子分离装置，（b）膜抑制剂，（c）检测器，（d）用于再生剂溶液的容器，（e） 离子分离装置和抑制器，（f）再生剂溶液容器和抑制剂之间的第二导管，（g）抑制剂和再生剂溶液容器之间的第三导管，和（h）流体连通的再生剂溶液循环回路 与检测器出口。
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7.发明申请Membrane suppressor with an outlet substantially non-retentive for ionic species 有权具有离子物质基本上非保持性的出口的膜抑制器公开(公告)号：US20080069731A1
公开(公告)日：2008-03-20
申请号：US11524513
申请日：2006-09-19
申请人： Yan Liu , Victor Barreto , Christopher A. Pohl
发明人： Yan Liu , Victor Barreto , Christopher A. Pohl
IPC分类号： G01N30/02
CPC分类号： G01N30/96 , G01N2030/965
摘要： An apparatus for ion chromatography comprising a suppressor comprising a housing and a liquid conduit segment disposed in the housing, the liquid conduit segment including a membrane, the membrane having an inlet section adjacent the inlet of the conduit segment and an outlet section adjacent the outlet of the conduit segment, the inlet section having ion exchange sites capable of transmitting ions of one charge, positive or negative, and the outlet section being substantially non-retentive electrostatically for charged ionic species. Also, the method of using the apparatus.
摘要翻译： 一种用于离子色谱的装置，其包括抑制器，该抑制器包括壳体和设置在壳体中的液体导管段，液体导管段包括膜，该膜具有邻近导管段入口的入口部分和邻近出口部分的出口部分 导管部分，入口部分具有能够传输一个电荷的离子的正离子或负离子的离子交换位置，并且对于带电离子物质，出口部分静电地基本上是非保持性的。 另外，使用该装置的方法。
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公开(公告)号：US08802010B2
公开(公告)日：2014-08-12
申请号：US13905516
申请日：2013-05-30
CPC分类号： B01D15/10 , G01N30/26 , G01N30/96 , G01N2030/965
摘要： A chromatographic method including chromatographically separating sample ionic species in an eluent stream, detecting the separated sample ionic species, catalytically combining hydrogen and oxygen gases or catalytically decomposing hydrogen peroxide in a catalytic gas elimination chamber, and recycling the effluent stream from the chamber to the chromatography separation column. The residence time between the detector and the chamber is at least about one minute. Also, flowing the recycle sequentially through two detector effluent flow channels of an electrolytic membrane suppressor. Also, applying heat or UV energy between the detector and the chamber. Also, detecting bubbles after the chamber. Also, a Platinum group metal catalyst and ion exchange medium in the chamber. Apparatus for performing the methods.
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公开(公告)号：US08465982B2
公开(公告)日：2013-06-18
申请号：US13075009
申请日：2011-03-29
IPC分类号： G01N30/02
CPC分类号： B01D15/10 , G01N30/26 , G01N30/96 , G01N2030/965
摘要： A chromatographic method including chromatographically separating sample ionic species in an eluent stream, detecting the separated sample ionic species, catalytically combining hydrogen and oxygen gases or catalytically decomposing hydrogen peroxide in a catalytic gas elimination chamber, and recycling the effluent stream from the chamber to the chromatography separation column. The residence time between the detector and the chamber is at least about one minute. Also, flowing the recycle sequentially through two detector effluent flow channels of an electrolytic membrane suppressor. Also, applying heat or UV energy between the detector and the chamber. Also, detecting bubbles after the chamber. Also, a Platinum group metal catalyst and ion exchange medium in the chamber. Apparatus for performing the methods.
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公开(公告)号：US08415168B2
公开(公告)日：2013-04-09
申请号：US13479119
申请日：2012-05-23
IPC分类号： G01N30/84
CPC分类号： B01D15/363 , B01D15/361 , B01D15/367 , G01N30/96 , G01N2030/965
摘要： An apparatus for capillary ion chromatography comprising a suppressor comprising flow-through ion exchange packing in a housing and capillary tubing formed of a permselective ion exchange membrane, and at least partially disposed in said ion exchange packing. Also, a recycle conduit for aqueous liquid from the detector to the packing. Further, the capillary tubing may have weakly acidic or weakly basic functional groups. Also, a method for using the apparatus.
摘要翻译： 一种用于毛细管离子色谱的装置，包括抑制器，该抑制器包括在壳体中的流通离子交换填料和由选择性选择性离子交换膜形成的毛细管，并且至少部分地设置在所述离子交换填料中。 另外，从检测器到包装的水性液体循环管道。 此外，毛细管可具有弱酸性或弱碱性官能团。 另外，使用该装置的方法。
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