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    Buffer kit and method of generating a linear pH gradient
    81.
    发明授权
    Buffer kit and method of generating a linear pH gradient 有权
    缓冲试剂盒和产生线性pH梯度的方法

    公开(公告)号：US08921113B2

    公开(公告)日：2014-12-30

    申请号：US13724873

    申请日：2012-12-21

    Applicant: Shanhua Lin ,  Christopher A. Pohl

    Inventor： Shanhua Lin ,  Christopher A. Pohl

    IPC: G01N30/34 ,  G01N30/02 ,  G01N33/68 ,  B01D15/16 ,  C09K15/30 ,  B01D15/36

    CPC classification number: C09K15/30 ,  B01D15/168 ,  B01D15/362 ,  G01N30/34 ,  Y10T436/10 ,  Y10T436/108331 ,  Y10T436/173845 ,  Y10T436/18

    Abstract: A buffer kit includes a first eluent and second eluent. The first eluent solution includes at least four buffer salts where at least three of the four buffer salts are a monovalent buffer salt, have a net negative charge or a net neutral zwitterionic charge, and include a sulfonate group and an amine. The second eluent solution includes at least four buffer salts where at least three of the four buffer salts are a monovalent buffer salt, have a net negative charge or a net neutral zwitterionic charge, and include a sulfonate group and an amine. The first eluent solution has a first pH and the second eluent solution has a second pH where the first pH and second pH are different values. The buffer kit provides a linear pH gradient that forms an approximately straight line from at least the first pH to the second pH.

    Abstract translation: 缓冲试剂盒包括第一洗脱液和第二洗脱液。 第一洗脱溶液包括至少四种缓冲盐，其中四种缓冲盐中的至少三个是一价缓冲盐，具有净负电荷或净中性两性离子电荷，并且包括磺酸盐基和胺。 第二洗脱溶液包括至少四种缓冲盐，其中四种缓冲盐中的至少三个是单价缓冲盐，具有净负电荷或净中性两性离子电荷，并且包括磺酸盐基和胺。 第一洗脱溶液具有第一pH，第二洗脱液具有第二pH，其中第一pH和第二pH是不同的值。 缓冲试剂盒提供线性pH梯度，其从至少第一pH至第二pH形成近似的直线。

    Ion chromatography systems with flow-delay eluent recycle
    82.
    发明授权
    Ion chromatography systems with flow-delay eluent recycle 有权
    具有流动延迟洗脱液回收的离子色谱系统

    公开(公告)号：US08802011B2

    公开(公告)日：2014-08-12

    申请号：US13905548

    申请日：2013-05-30

    Applicant: Yan Liu ,  Kannan Srinivasan ,  Christopher A. Pohl ,  Sheetal Bhardwaj ,  Zhongqing Lu

    Inventor： Yan Liu ,  Kannan Srinivasan ,  Christopher A. Pohl ,  Sheetal Bhardwaj ,  Zhongqing Lu

    IPC: G01N30/02 ,  G01N30/26 ,  G01N30/96

    CPC classification number: B01D15/10 ,  G01N30/26 ,  G01N30/96 ,  G01N2030/965

    Abstract: 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.

    Abstract translation: 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。

    Fluid sample delivery system and method
    84.
    发明授权
    Fluid sample delivery system and method 有权
    流体样品输送系统和方法

    公开(公告)号：US08776621B2

    公开(公告)日：2014-07-15

    申请号：US12399786

    申请日：2009-03-06

    Applicant: Walter D. Modic ,  Michael McAdams ,  Lawrence T. McNary ,  Trung K. Huynh ,  Christopher A. Pohl ,  Frank Hoefler

    Inventor： Walter D. Modic ,  Michael McAdams ,  Lawrence T. McNary ,  Trung K. Huynh ,  Christopher A. Pohl ,  Frank Hoefler

    IPC: G01N1/22

    CPC classification number: G01N35/025 ,  B01L3/502 ,  B01L3/5021 ,  B01L2300/0681 ,  B01L2400/0478 ,  G01N30/14 ,  G01N30/24 ,  G01N35/1016 ,  G01N2035/0441

    Abstract: A fluid delivery system including a filter for filtering solid particles from a liquid sample, the filter including a first filter member configured to filter solid media from a liquid sample, a second filter member fluidly connected to the first filter member, and a third filter member fluidly connected to a downstream end of the second filter member. The second filter member is configured to filter relatively smaller solid media from the liquid sample than the first filter member, and the third filter member is configured to filter relatively larger solid media from the liquid sample than the second filter member. In various aspects, the system includes a displacement-type plunger needle to draw sample fluid from a vial, a cantilevered carousel for rotatably supporting an array of sample holding vials, and a support for supporting the carousel. Method of using the fluid delivery system are also disclosed.

    Abstract translation: 一种流体输送系统，包括用于从液体样品过滤固体颗粒的过滤器，所述过滤器包括构造成从液体样品过滤固体介质的第一过滤构件，与第一过滤构件流体连接的第二过滤构件和第三过滤构件 流体连接到第二过滤构件的下游端。 第二过滤构件被配置为从液体样品中过滤相对较小的固体介质而不是第一过滤构件，并且第三过滤构件被配置为从液体样品中过滤比第二过滤构件更大的固体介质。 在各个方面，该系统包括用于从小瓶中抽出样品流体的位移型柱塞针，用于可旋转地支撑样品保持小瓶阵列的悬臂式转盘和用于支撑转盘的支撑件。 还公开了使用流体输送系统的方法。

    ELECTROCHEMICALLY DRIVEN PUMP
    87.
    发明申请
    ELECTROCHEMICALLY DRIVEN PUMP 有权
    电化学泵

    公开(公告)号：US20120138474A1

    公开(公告)日：2012-06-07

    申请号：US13364078

    申请日：2012-02-01

    Applicant: Hamish Small ,  Yan Liu ,  Christopher A. Pohl

    Inventor： Hamish Small ,  Yan Liu ,  Christopher A. Pohl

    IPC: C25B15/02 ,  C25B1/02 ,  C25B9/00

    CPC classification number: G01N30/96 ,  B01D61/427 ,  F04B17/00 ,  G01N30/32 ,  G01N30/34 ,  G01N30/6095

    Abstract: 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, it 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.

    Abstract translation: 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，将发电机室与阳极隔室分离，第一电极与阳极室电连通，阴极室相邻 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。

    Electrochemically driven pump
    88.
    发明授权
    Electrochemically driven pump 有权
    电动泵

    公开(公告)号：US08133373B2

    公开(公告)日：2012-03-13

    申请号：US12192781

    申请日：2008-08-15

    Applicant: Hamish Small ,  Yan Liu ,  Christopher A. Pohl

    Inventor： Hamish Small ,  Yan Liu ,  Christopher A. Pohl

    IPC: B01D61/44

    CPC classification number: G01N30/96 ,  B01D61/427 ,  F04B17/00 ,  G01N30/32 ,  G01N30/34 ,  G01N30/6095

    Abstract: 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.

    Abstract translation: 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。

    Recycled suppressor regenerants
    90.
    发明授权
    Recycled suppressor regenerants 有权
    回收抑制剂再生剂

    公开(公告)号：US08021555B2

    公开(公告)日：2011-09-20

    申请号：US12337435

    申请日：2008-12-17

    Applicant: Yan Liu ,  Victor Manuel Berber Barreto ,  Christopher A. Pohl ,  John M. Riviello

    Inventor： Yan Liu ,  Victor Manuel Berber Barreto ,  Christopher A. Pohl ,  John M. Riviello

    IPC: B01D15/08

    CPC classification number: G01N30/96 ,  G01N2030/965

    Abstract: 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.

    Abstract translation: 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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