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41. 发明授权

US08415168B2 Capillary ion chromatography 有权
标题翻译：毛细管离子色谱
公开(公告)号：US08415168B2
公开(公告)日：2013-04-09
申请号：US13479119
申请日：2012-05-23
申请人： Yan Liu , Victor Manuel Berber Barreto , Christopher A. Pohl , Nebojsa Avdalovic
发明人： Yan Liu , Victor Manuel Berber Barreto , Christopher A. Pohl , Nebojsa Avdalovic
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。

42. 发明授权

US08367423B2 Large capacity acid or base generator and method of use 有权
标题翻译：大容量酸或碱发生器及其使用方法
公开(公告)号：US08367423B2
公开(公告)日：2013-02-05
申请号：US12706944
申请日：2010-02-17
申请人： Yan Liu , Hamish Small , Nebojsa Avdalovic
发明人： Yan Liu , Hamish Small , Nebojsa Avdalovic
IPC分类号： G01N30/28
CPC分类号： G01N30/96 , C25B1/16 , C25B1/22 , G01N30/02 , G01N30/34 , G01N2030/965 , Y10T436/25 , B01D15/36 , B01D15/426
摘要： Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generation chamber separated from the cation source reservoir by a barrier (e.g. a charged membrane) substantially preventing liquid flow while providing a cation transport bridge, applying an electric potential between an anode cation source reservoir and a cathode in the base generation chamber to electrolytically generate hydroxide ions therein and to cause cations in the cation source reservoir to electromigrate and to be transported across the barrier toward the cathode to combine with the transported cations to form cation hydroxide, and removing the cation hydroxide in an aqueous liquid stream as an effluent from the first base generation chamber. Suitable cation sources include a salt solution, a cation hydroxide solution or cation exchange resin.
摘要翻译：用于产生酸或碱的方法和设备，例如，用于阴离子的色谱分析。为了产生碱，该方法包括以下步骤：在阳离子源储存器中提供阳离子源，使水性液体流通过基本上防止液体流动的屏障（例如带电膜）与阳离子源储存器分离的碱性产生室流动，提供阳离子输送桥，在基底产生室中的阳极阳离子源储存器和阴极之间施加电位以在其中电解产生氢氧根离子，并使阳离子源储存器中的阳离子电迁移并穿过屏障向着阴极与所运送的阳离子结合以形成阳离子氢氧化物，并且以水溶液流中的阳离子氢氧化物作为来自第一碱基产生室的流出物除去。合适的阳离子源包括盐溶液，阳离子氢氧化物溶液或阳离子交换树脂。

43. 发明授权

US08062515B2 Parking a sample stream and suppressing the sample 有权
标题翻译：停放样品流并抑制样品
公开(公告)号：US08062515B2
公开(公告)日：2011-11-22
申请号：US12140522
申请日：2008-06-17
申请人： Kannan Srinivasan , Rong Lin
发明人： Kannan Srinivasan , Rong Lin
IPC分类号： B01D15/08
CPC分类号： G01N30/96 , G01N30/02 , G01N2030/146 , G01N2030/965 , B01D15/36
摘要： Pretreatment method and apparatus to remove matrix ions from a liquid sample, prior to separation of the sample analytes (e.g. by chromatography), by flowing the liquid sample into a sample compartment and stopping the flow. The sample compartment has a wall comprising an ion exchange membrane having exchangeable ions of the same charge as the matrix ions to be removed. A regenerant liquid stream flows through a regenerant flow compartment on the other side of the membrane from said parked liquid sample. Matrix ions in the parked liquid sample are transported across the membrane into the regenerant flow compartment. Suppression may be performed electrolytically and/or chemically. A concentrator column may also be used.
摘要翻译：在分离样品分析物（例如通过色谱法）之前，通过将液体样品流入样品室并停止流动，从液体样品中去除基质离子的预处理方法和装置。样品室具有包含具有与待除去的基质离子相同电荷的可交换离子的离子交换膜的壁。再生液体流从所述停放的液体样品的膜的另一侧流过再生剂流动隔室。停放的液体样品中的基质离子通过膜输送到再生剂流动隔室中。可以电解和/或化学地进行抑制。还可以使用浓缩塔。

44. 发明申请

US20110210718A1 Analytic Device With PhotoVoltaic Power Source 有权
标题翻译：具有光伏电源的分析装置
公开(公告)号：US20110210718A1
公开(公告)日：2011-09-01
申请号：US12714411
申请日：2010-02-26
申请人： Martin VANA , William Dale Case
发明人： Martin VANA , William Dale Case
IPC分类号： G01N27/00 , G01N30/00
CPC分类号： G01N30/64 , G01N30/96
摘要： An analytical device including a sensor, an analytical circuit, and a power source. The power source includes an optical coupler formed of a light source and a photovoltaic cell for producing an electromotive force in response to light from the light source. The optical coupler is configured to provide the electromotive force to the analytical circuit. The power source may be configured for separation between the power supply and the resulting electromotive force supplied to the analytical circuit. Various aspects of the invention are directed to providing a power source for one or more components of an electrochemical detector. A method of providing power to an analytical instrument is also disclosed.
摘要翻译：包括传感器，分析电路和电源的分析装置。电源包括由光源和用于响应于来自光源的光产生电动势的光伏电池形成的光耦合器。光耦合器被配置为向分析电路提供电动势。电源可以被配置为在电源和提供给分析电路的所得电动势之间分离。本发明的各个方面涉及为电化学检测器的一个或多个部件提供电源。还公开了向分析仪器提供电力的方法。

45. 发明申请

US20110173786A1 Cutting analytical instrument tubing 审中-公开
标题翻译：切割分析仪器管
公开(公告)号：US20110173786A1
公开(公告)日：2011-07-21
申请号：US12691669
申请日：2010-01-21
申请人： Khosro MOSHFEGH , Martin Vana
发明人： Khosro MOSHFEGH , Martin Vana
IPC分类号： B26D3/16 , B26D7/06 , B26D5/42
CPC分类号： B26D3/16 , B26D1/0006 , B26D1/10 , B26D5/42 , B26D7/0683 , B26D2001/002 , Y10T29/1131 , Y10T83/0596 , Y10T83/5669 , Y10T83/647
摘要： An apparatus for cutting analytical instrument tubing includes a blade for cutting a tube and a clamp assembly configured to securely hold at least a portion of the tube. The clamp assembly is movable between a first position to hold the tube in a first cutting location relative to the blade and a second position to hold the tube in a second cutting position relative to the blade. A tube advancement mechanism is operably connected to the clamp assembly. A method for cutting an analytical instrument tube having a first cross section and a second cross section proximal to the first cross section includes positioning the tube in a first cutting position relative to a cutting edge of a blade, at least partially cutting the tube across the first cross section to form a first cut surface, advancing the tube to a second cutting position relative to the cutting edge of the blade, and cutting the tube across the second cross section of the tube to form a second cut surface, the second cut surface having fewer imperfections than the first cut surface.
摘要翻译：用于切割分析仪器管的设备包括用于切割管的刀片和构造成牢固地保持管的至少一部分的夹具组件。夹具组件可在第一位置和第二位置之间移动，该第一位置将管保持在相对于叶片的第一切割位置，以及将管保持在相对于叶片的第二切割位置的第二位置。管道前进机构可操作地连接到夹具组件。一种用于切割具有第一横截面和靠近第一横截面的第二横截面的分析仪器管的方法包括将管定位在相对于叶片的切割边缘的第一切割位置中，至少部分地切割穿过管第一横截面以形成第一切割表面，使所述管相对于所述刀片的切割边缘前进到第二切割位置，并且切割所述管穿过所述管的所述第二横截面以形成第二切割表面，所述第二切割表面具有比第一切割表面更少的缺陷。

46. 发明申请

US20100307919A1 ELECTROLYTIC ELUENT GENERATOR AND METHOD OF USE 有权
标题翻译：电解液发生器及其使用方法
公开(公告)号：US20100307919A1
公开(公告)日：2010-12-09
申请号：US12816319
申请日：2010-06-15
申请人： Yan Liu , Nebojsa Avdalovic
发明人： Yan Liu , Nebojsa Avdalovic
IPC分类号： B01D61/48 , B01D61/44
CPC分类号： B01D69/02 , B01D15/16 , B01D15/166 , B01D61/44 , B01D61/48 , B01D69/141 , G01N30/34 , G01N30/96 , G01N2030/965 , Y10T436/25
摘要： An acid or base is generated in an aqueous solution by the steps of: (a) providing a source of first ions adjacent an aqueous liquid in a first acid or base generation zone, separated by a first barrier (e.g., anion exchange membrane) substantially preventing liquid flow and transporting ions only of the same charge as said first ions, (b) providing a source of second ions of opposite charge adjacent an aqueous liquid in a second acid or base generation zone, separated by a second barrier transporting ions only of the same charge as the second ions, and (c) transporting ions across the first barrier by applying an electrical potential through said first and second zones to generate an acid-containing aqueous solution in one of said first or second zones and a base-containing aqueous solution in the other one which may be combined to form a salt. Also, electrolytic apparatus for performing the above method.
摘要翻译：通过以下步骤在水溶液中产生酸或碱：（a）在第一酸或碱产生区中提供邻近水性液体的第一离子源，由第一势垒（例如阴离子交换膜）分开，基本上防止液体流动并仅传输与所述第一离子相同电荷的离子，（b）在第二酸或碱产生区域中提供邻近含水液体的相反电荷的第二离子源，由第二阻挡层输送离子与第二离子相同的电荷，以及（c）通过施加电势通过所述第一和第二区输送离子穿过第一屏障，以在所述第一或第二区之一中产生含酸的水溶液，并且含有碱另一个可以组合形成盐的水溶液。而且，用于执行上述方法的电解装置。

47. 发明申请

US20100038245A1 Electrochemically Driven Pump 有权
标题翻译：电动泵
公开(公告)号：US20100038245A1
公开(公告)日：2010-02-18
申请号：US12192781
申请日：2008-08-15
申请人： Hamish Small , Yan Liu , Christopher A. Pohl
发明人： Hamish Small , Yan Liu , Christopher A. Pohl
IPC分类号： B01D59/42
CPC分类号： G01N30/96 , B01D61/427 , F04B17/00 , G01N30/32 , G01N30/34 , G01N30/6095
摘要： A continuous electrochemical pump comprising a water generator compartment, an anode compartment on one side of said generator compartment, a cation exchange barrier, separating the generator compartment from the anode compartment, a first electrode in electrical communication with the anode compartment, a cathode compartment adjacent the generator chamber, an anion exchange barrier, separating the generation compartment from the cathode compartment, and a second electrode in electrical communication with the cathode compartment. Use of the pump as a sample concentrator. A feedback loop for the pump. A reservoir, with or without an intermediate piston, on the output side of the pump.
摘要翻译：一种连续电化学泵，包括水发生器室，在所述发生器室的一侧上的阳极室，阳离子交换屏障，将发生器室与阳极室分开，与阳极室电连通的第一电极，邻近的阴极室所述发生器室，阴离子交换屏障，将所述发电室与所述阴极室分开，以及与所述阴极室电连通的第二电极。使用泵作为样品浓缩器。泵的反馈回路。在泵的输出侧具有或不具有中间活塞的储存器。

48. 发明申请

US20100018359A1 Tight-spot fitting and driver, and method of use thereof 有权
标题翻译：紧密配合和驾驶员及其使用方法
公开(公告)号：US20100018359A1
公开(公告)日：2010-01-28
申请号：US12178845
申请日：2008-07-24
申请人： George N. PROPER
发明人： George N. PROPER
IPC分类号： B25B13/06 , B25B13/48 , B25B23/14
CPC分类号： B25B13/48 , B25B15/008 , F16L41/10
摘要： A tight-spot fitting includes an elongated body configured to be inserted into and extracted from an aperture of a device, a user-operable head configured to be manipulated by a user to rotate the elongated body with respect to the aperture of the device, a depression in the user-operable head dimensioned and configured to receive a corresponding driver, and a through-bore extending through the elongated body and the user-operable head into the depression. The through-bore is configured and dimensioned to receive a line therethrough such that when the elongated body portion is inserted into the aperture, the line spans the aperture and through-bore, and extends through the depression.A tight-spot driver includes an elongated body, an operational end at a first end of the body, configured and dimensioned for insertion into a depression of a fitting, a user-operable head at a second end of the body, configured to allow a user to rotate the body in order to rotate the fitting when the operational end may be inserted in the depression of the fitting, and a slot extending from the operational end along at least a portion of the body. The slot is dimensioned and configured to accommodate a tubing the fitting extending the depression of the fittingA method of using the tight-spot fitting and driver is also disclosed.
摘要翻译：紧点配件包括被配置为插入设备的孔中并从其中提取的细长主体，用户可操作的头部，其被配置为由使用者操纵以相对于设备的孔旋转细长主体，用户可操作的头部中的凹陷尺寸和构造成接收相应的驱动器，以及贯穿细长主体和用户可操作的头部进入凹陷部的通孔。通孔被构造和尺寸设计成接收穿过其中的线，使得当细长主体部分插入孔中时，线跨越孔和通孔并延伸穿过凹陷。紧点驱动器包括细长主体，在主体的第一端处的操作端，构造和尺寸设置成用于插入配件的凹陷中，用于在主体的第二端处的用户可操作的头部，其被配置为允许使用者旋转主体以便当操作端可以插入到装配的凹部中时旋转配件，以及沿着主体的至少一部分从操作端延伸的狭槽。狭槽的尺寸和构造适于容纳延伸配件的凹陷的配件的管道。还公开了使用紧密点配件和驱动器的方法。

49. 发明授权

US07618826B2 Membrane suppressor with an outlet substantially non-retentive for ionic species 有权
标题翻译：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：US07618826B2
公开(公告)日：2009-11-17
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 , G01N33/00
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。

50. 发明授权

US07585679B1 Ion chromatography system with flow-delay eluent recycle 有权
标题翻译：离子色谱系统具有流动延迟洗脱液回收
公开(公告)号：US07585679B1
公开(公告)日：2009-09-08
申请号：US12036147
申请日：2008-02-22
申请人： Yan Liu , Kannan Srinivasan , Christopher A. Pohl , Sheetal Bhardwaj , Zhongqing Lu
发明人： Yan Liu , Kannan Srinivasan , Christopher A. Pohl , Sheetal Bhardwaj , Zhongqing Lu
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.
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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