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公开(公告)号：US08507292B2
公开(公告)日：2013-08-13
申请号：US13175699
申请日：2011-07-01
Applicant: Kannan Srinivasan , Bruce Richter , Christopher A. Pohl , Brett Murphy , Brian Dorich , S. M. Rahmat Ullah
Inventor： Kannan Srinivasan , Bruce Richter , Christopher A. Pohl , Brett Murphy , Brian Dorich , S. M. Rahmat Ullah
IPC: G01N1/18
CPC classification number: G01N1/34 , B01D11/0492 , B01J20/043 , B01J20/10 , B01J20/14 , B01J20/26 , B01J20/3236 , B01J2220/46 , B01J2220/66 , G01N1/4022 , G01N1/4044 , G01N1/405 , G01N30/7206 , G01N30/96 , G01N2001/4061 , Y10T436/10 , Y10T436/255
Abstract: A method for pretreating and extracting a liquid sample by sorbing an aqueous liquid sample, including an organic analyte and an acid or a base, in a solid sorbent material, and at least partially neutralizing the acid or base by reaction with neutralizing ions retained on a support surface, and contacting the liquid sample-sorbed sorbent material at elevated temperature and pressure with an organic solvent to extract the analyte into said solvent, preferably in a vessel having an extraction chamber with a zirconium metal interior surface.
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公开(公告)号：US08308952B2
公开(公告)日：2012-11-13
申请号：US13481488
申请日：2012-05-25
Applicant: Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Arachava Siriraks
Inventor： Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Arachava Siriraks
IPC: B01D15/08
CPC classification number: G01N30/96 , G01N30/62 , G01N2030/965
Abstract: A liquid chromatographic system is provided including catalytically combining hydrogen and oxygen gases in the chromatography eluent stream in a catalytic gas elimination chamber, to form water and thereby reduce the gas content in the eluent stream. Also, a liquid ion chromatographic system in which the effluent from the detector is recycled to a membrane suppressor and then is mixed with a source of eluent for recycle to the chromatographic column.
Abstract translation: 提供液相色谱系统，其包括在催化气体消除室中的色谱洗脱液流中催化结合氢气和氧气，形成水，从而降低洗脱液流中的气体含量。 此外，液体离子色谱系统将来自检测器的流出物再循环至膜抑制剂，然后与洗脱液混合以再循环至色谱柱。
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公开(公告)号：US20120228227A1
公开(公告)日：2012-09-13
申请号：US13479119
申请日：2012-05-23
Applicant: Yan Liu , Victor Manuel Berber Barreto , Christopher A. Pohl , Nebojsa Avdalovic
Inventor： Yan Liu , Victor Manuel Berber Barreto , Christopher A. Pohl , Nebojsa Avdalovic
IPC: B01D15/20
CPC classification number: B01D15/363 , B01D15/361 , B01D15/367 , G01N30/96 , G01N2030/965
Abstract: 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.
Abstract translation: 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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公开(公告)号：US08182679B2
公开(公告)日：2012-05-22
申请号：US12111059
申请日：2008-04-28
Applicant: Xiaodong Liu , Christopher A. Pohl , Andrei V. Bordunov , Nebojsa Avdalovic
Inventor： Xiaodong Liu , Christopher A. Pohl , Andrei V. Bordunov , Nebojsa Avdalovic
IPC: B01D15/08
CPC classification number: B01J20/288 , B01J20/286 , B01J20/287 , B01J20/289 , B01J20/3219 , B01J20/3242 , B01J20/3285 , C07F7/1804
Abstract: The present invention, provides novel silicon compounds, methods for making these novel silicon compounds, compositions comprising these novel silicon compounds attached to substrates, methods for attaching the novel silicon compounds to substrates and methods for using the compositions in a variety of chromatographic applications.
Abstract translation: 本发明提供新的硅化合物，制备这些新型硅化合物的方法，包含这些新型硅化合物附着在基底上的组合物，将新型硅化合物附着于底物的方法以及在各种色谱应用中使用该组合物的方法。
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公开(公告)号：US20120024793A1
公开(公告)日：2012-02-02
申请号：US13240610
申请日：2011-09-22
Applicant: Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Archava Siriraks
Inventor： Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Archava Siriraks
CPC classification number: G01N30/96 , G01N30/62 , G01N2030/965
Abstract: A liquid chromatographic system is provided including catalytically combining hydrogen and oxygen gases in the chromatography eluent stream in a catalytic gas elimination chamber, to form water and thereby reduce the gas content in the eluent stream. Also, a liquid ion chromatographic system in which the effluent from the detector is recycled to a membrane suppressor and then is mixed with a source of eluent for recycle to the chromatographic column.
Abstract translation: 提供液相色谱系统，其包括在催化气体消除室中的色谱洗脱液流中催化结合氢气和氧气，形成水，从而降低洗脱液流中的气体含量。 此外，液体离子色谱系统将来自检测器的流出物再循环至膜抑制剂，然后与洗脱液混合以再循环至色谱柱。
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Patent Agency Ranking
公开(公告)号：US08043507B2
公开(公告)日：2011-10-25
申请号：US11955083
申请日：2007-12-12
Applicant: Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Archava Siriraks
Inventor： Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Archava Siriraks
IPC: B01D15/08
CPC classification number: G01N30/96 , G01N30/62 , G01N2030/965
Abstract: A liquid chromatographic system is provided including catalytically combining hydrogen and oxygen gases in the chromatography eluent stream in a catalytic gas elimination chamber, to form water and thereby reduce the gas content in the eluent stream. Also, a liquid ion chromatographic system in which the effluent from the detector is recycled to a membrane suppressor and then is mixed with a source of eluent for recycle to the chromatographic column.
Abstract translation: 提供液相色谱系统，其包括在催化气体消除室中的色谱洗脱液流中催化结合氢气和氧气，形成水，从而降低洗脱液流中的气体含量。 此外，液体离子色谱系统将来自检测器的流出物再循环至膜抑制剂，然后与洗脱液混合以再循环至色谱柱。
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27.发明申请公开(公告)号：US20110210055A1
公开(公告)日：2011-09-01
申请号：US12714253
申请日：2010-02-26
Applicant: Kannan Srinivasan , Christopher A. Pohl , Sheetal Bhardwaj , Rong Lin
Inventor： Kannan Srinivasan , Christopher A. Pohl , Sheetal Bhardwaj , Rong Lin
CPC classification number: B01D15/36 , B01D15/361 , B01J39/17 , B01J39/19 , B01J39/26 , B01J41/04 , B01J41/13 , B01J41/20 , B01J47/00
Abstract: The present invention provides a new design for high capacity stationary phases for chromatography, for example, ion chromatography. The stationary phases include a first polymer layer in contact with and at least partially coating the substrate of the stationary phase. The first polymer layer serves as a foundation for the attachment, and in various embodiments, the growth and attachment, of a highly hyperbranched polymer structure, typically based on one or more products of condensation polymerization. Multiple components are of use in forming the first polymer layer and the hyperbranched polymer structure, thereby providing a stationary phase that can be engineered to have a desired property such as ion capacity, ion selectivity, and the like. Exemplary condensation polymers are formed by the reaction of at least one polyfunctional compound with at least one compound of complimentary reactivity, e.g., a nucleophilic polyfunctional compound reacting with an electrophilic compound.
Abstract translation: 本发明提供了用于色谱法的高容量固定相的新设计，例如离子色谱法。 固定相包括与固定相的基底接触并且至少部分地涂覆固定相的基底的第一聚合物层。 第一聚合物层用作连接的基础，并且在各种实施方案中，通常基于一个或多个缩聚产物的高度超支化的聚合物结构的生长和附着。 多个组分可用于形成第一聚合物层和超支化聚合物结构，从而提供可被工程化以具有所需性质如离子容量，离子选择性等的固定相。 示例性缩合聚合物通过至少一种多官能化合物与至少一种互补反应性化合物的反应形成，例如与亲电子化合物反应的亲核多官能化合物。
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公开(公告)号：US20090211979A1
公开(公告)日：2009-08-27
申请号：US12036544
申请日：2008-02-25
Applicant: Kannan Srinivasan , Rong Lin , Sheetal Bhardwaj , Christopher A. Pohl
Inventor： Kannan Srinivasan , Rong Lin , Sheetal Bhardwaj , Christopher A. Pohl
IPC: B01D15/08
CPC classification number: G01N30/96
Abstract: Ion chromatography apparatus including (a) a chromatographic column, (b) a source of an aqueous eluent liquid stream, (c) a detector, (d) a recycle line between the detector and the chromatographic column, and (e) a purifying device disposed along the recycle line including ion exchange removal medium. Also, such apparatus with an electrolytic purifying device disposed along the recycle line. Also, methods of using such apparatus.
Abstract translation: 离子色谱装置包括（a）色谱柱，（b）洗脱液液相流源，（c）检测器，（d）检测器和色谱柱之间的再循环管线，和（e）净化装置 沿着包括离子交换去除介质的再循环管线设置。 此外，这种具有沿着再循环线设置的电解净化装置的装置。 另外，使用这种装置的方法。
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公开(公告)号：US07329346B2
公开(公告)日：2008-02-12
申请号：US11065335
申请日：2005-02-23
Applicant: Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Archava Siriraks
Inventor： Yan Liu , Christopher A. Pohl , Nebojsa Avdalovic , John M. Riviello , Archava Siriraks
IPC: B01D15/08
CPC classification number: G01N30/96 , G01N30/62 , G01N2030/965
Abstract: A liquid chromatographic system is provided including catalytically combining hydrogen and oxygen gases in the chromatography eluent stream in a catalytic gas elimination chamber, to form water and thereby reduce the gas content in the eluent stream. Also, a liquid ion chromatographic system in which the effluent from the detector is recycled to a membrane suppressor and then is mixed with a source of eluent for recycle to the chromatographic column.
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公开(公告)号：US07166226B2
公开(公告)日：2007-01-23
申请号：US11046477
申请日：2005-01-28
Applicant: L. Andy Woodruff , Andrei V. Bordunov , Christopher A. Pohl
Inventor： L. Andy Woodruff , Andrei V. Bordunov , Christopher A. Pohl
IPC: C08B37/16
Abstract: One embodiment of the invention comprises an ion exchange composition formed by reacting unsaturated carbon to carbon moieties pendant from derivatized ion binding cryptands with a support substrate under free radical activation conditions to form a covalent bond therebetween. In another embodiment, a cryptand ion exchange composition is made by covalently bonding unsaturated carbon to carbon moieties pendant from a derivatized ion binding cryptands with unsaturated carbon to carbon moieties pendant from a support substrate under free radical activation conditions to form covalent bond.
Abstract translation: 本发明的一个实施方案包括通过使自由基活化条件下的不饱和碳与衍生化的离子结合穴状物侧链的碳部分与支持底物反应形成的离子交换组合物，以在它们之间形成共价键。 在另一个实施方案中，通过共价键合不饱和碳与从自由基活化条件下从支持底物悬挂的不饱和碳与碳部分的衍生化离子结合穴状结构的碳部分共价键合而形成穴状离子交换组合物以形成共价键。
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