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    Peltier based freeze-thaw valves and methods of use
    13.
    发明授权
    Peltier based freeze-thaw valves and methods of use 有权
    基于珀尔帖的冻融阀和使用方法

    公开(公告)号：US07356995B2

    公开(公告)日：2008-04-15

    申请号：US11533831

    申请日：2006-09-21

    Applicant: Theodore A. Dourdeville

    Inventor： Theodore A. Dourdeville

    IPC: F25B21/02

    CPC classification number: B01L3/502738 ,  B01L2300/1822 ,  B01L2300/1827 ,  B01L2400/0677 ,  F16K13/10 ,  F16K99/0001 ,  F16K99/0003 ,  F16K99/0021 ,  F16K99/0044 ,  F16K2099/0084 ,  F25B21/02 ,  G01N30/20 ,  G01N35/1097 ,  G05D23/1919 ,  H01L35/325 ,  Y10T137/0391 ,  Y10T137/2196 ,  Y10T137/2251 ,  Y10T137/6606 ,  G01N2030/303 ,  G01N2030/204

    Abstract: A freeze-thaw valve is provided using a Peltier heat pump where the thermal short-circuit path between a cooled thermal mass and a heated thermal mass is reduced or absent and the valve state transition time is minimized. The freeze-thaw valve comprises a Peltier heat pump mounted to a heat exchange surface that comprises a cross-drilled copper water jacket or manifold. The Peltier heat pump is operated to maintain a cooled thermal mass at a substantially constant low temperature. A resistance heating element is used to produce a heated thermal mass. The freeze-thaw segment of a fluid conduit is commutated to contact either the heated or the cooled thermal mass to thaw and therefore open the valve or cool and thus close the valve. The operation of the Peltier heat pump at a constant temperature avoids problems inherent in the use of a Peltier heat pump to both heat and cool a freeze thaw segment.

    Abstract translation: 使用珀尔帖热泵提供冷冻解冻阀，其中冷却的热质量和加热的热质量之间的热短路径减少或不存在，并且阀状态转变时间最小化。 冻融阀包括安装到热交换表面的珀尔帖热泵，该热交换表面包括交叉钻孔的铜水套或歧管。 Peltier热泵运行，以保持冷却的热质量在基本上恒定的低温。 电阻加热元件用于产生加热的热质。 流体导管的冻融段被换向以接触加热或冷却的热物质以解冻，因此打开阀或冷却并因此关闭阀。 帕尔帖热泵在恒定温度下的运行避免了使用帕尔帖热泵对冷冻解冻段进行加热和冷却的固有问题。

    Flow cell, analyte measurement apparatus and methods related thereto
    14.
    发明授权
    Flow cell, analyte measurement apparatus and methods related thereto 有权
    流动池，分析物测量装置及其相关方法

    公开(公告)号：US06526188B2

    公开(公告)日：2003-02-25

    申请号：US09758066

    申请日：2001-01-11

    Applicant: Theodore A. Dourdeville ,  Anthony C. Gilby ,  Dennis DellaRovere

    Inventor： Theodore A. Dourdeville ,  Anthony C. Gilby ,  Dennis DellaRovere

    IPC: G02B600

    CPC classification number: G01N30/74 ,  G01N21/05 ,  G01N2021/0346 ,  G01N2030/746 ,  G02B6/381

    Abstract: A modular flow cell having a high optical throughput, a long optical path length and a small cross-section. The modular flow cell configuration includes remote ports or connections for liquid and light input, and liquid and light output. The flow cell includes a flow cell body having two ends, each with a respective end interface secured thereto. The flow cell is configured to formn a part of a modular flow cell assembly. The flow cell body includes a channel having a through-aperture with an inner surface. A light guiding material, e.g. a transparent fluoropolymer material having a refractive index less than the refractive index of common chromatography solvents, is disposed proximate to the channel to form a light guiding through-aperture in the flow cell body. The channel is formed of materials that can provide the necessary mechanical strength and a fluid seal, and more particularly, includes materials such as polyetheretherketone (PEEK), which can develop a fluid seal at the interface between the flow cell body end and each end interface.

    Abstract translation: 具有高光学吞吐量，长光程长度和小横截面的模块化流通池。 模块化流通池配置包括用于液体和光输入的远程端口或连接以及液体和光输出。 流动池包括具有两个端部的流动池体，每个端部具有固定到其上的相应的端部界面。 流动池被配置成形成模块化流通池组件的一部分。 流通池主体包括具有内表面的通孔的通道。 导光材料，例如 折射率小于普通色谱溶剂的折射率的透明含氟聚合物材料设置在通道附近，以在流动池主体中形成导光通孔。 该通道由能够提供必要的机械强度和流体密封的材料形成，更具体地，包括诸如聚醚醚酮（PEEK）的材料，其可以在流动池主体端部和每个端部界面之间的界面处形成流体密封 。

    Apparatus And Method For Coupled LC-NMR Analysis
    17.
    发明申请
    Apparatus And Method For Coupled LC-NMR Analysis 有权
    耦合LC-NMR分析的装置和方法

    公开(公告)号：US20120262178A1

    公开(公告)日：2012-10-18

    申请号：US13252684

    申请日：2011-10-04

    Applicant: Theodore A. Dourdeville ,  Charles H. Phoebe, JR.

    Inventor： Theodore A. Dourdeville ,  Charles H. Phoebe, JR.

    IPC: G01R33/28

    CPC classification number: G01N30/82 ,  G01N24/08 ,  G01N24/084 ,  G01N24/085 ,  G01N30/78 ,  G01N2030/8411 ,  G01R33/307 ,  G01R33/44

    Abstract: A device for performing chromatographic separations and nuclear magnetic resonance analysis has trapping means for holding a separated sample and to form a held separated sample and placing said held separated sample in said nuclear magnetic resonance assembly. One preferred trapping means forms a held separated sample and a passed separated sample. The passed separated sample is discharged from the device. Preferred trapping means comprise a trapping column or a separated sample loop.

    Abstract translation: 用于进行色谱分离和核磁共振分析的装置具有用于保持分离的样品并形成保持的分离的样品并将所述保持的分离的样品放置在所述核磁共振组件中的捕集装置。 一个优选的捕获装置形成保持的分离的样品和通过的分离的样品。 通过的分离样品从装置中排出。 优选的捕集装置包括捕集塔或分离的样品环。

    High pressure capillary liquid chromatography solvent delivery system
    18.
    发明授权
    High pressure capillary liquid chromatography solvent delivery system 有权
    高压毛细管液相色谱溶剂输送系统

    公开(公告)号：US06299767B1

    公开(公告)日：2001-10-09

    申请号：US09430820

    申请日：1999-10-29

    Applicant: Theodore A. Dourdeville

    Inventor： Theodore A. Dourdeville

    IPC: B01D1508

    CPC classification number: G01N30/24 ,  B01D15/166 ,  G01N30/36 ,  G01N2030/326

    Abstract: High pressure capillary liquid chromatography solvent delivery is effected at substantially low volume and atmospheric pressure. The low volume solvent composition is subsequently pressurized and expelled at high pressure into a receiving device such as a column. The solvent composition is expelled from a fluid metering system configured to deliver liquids at low pressures to a storage matrix via an isolation valve. The solvent composition is delivered to the storage matrix in reverse order such that the first volume of liquid delivered into the storage matrix is the last volume of liquid expelled out. Liquid pre-existing within the storage matrix is transferred into a fluid accumulator in fluid communication with the storage matrix. The fluid accumulator is enveloped in a pressure caisson which can be pressurized or depressurized in response to sensor signals obtained from a fluid volume displacement transducer and a pressure sensor, in accordance with solvent composition cycle formation. As the caisson is pressurized, the pressure acting on the fluid accumulator causes the solvent composition within the storage matrix to be expelled out past the isolation valve into a chromatographic column.

    Abstract translation: 高压毛细管液相色谱溶剂输送在基本上低体积和大气压下进行。 随后将低体积溶剂组合物加压并在高压下排出到诸如柱的接收装置中。 溶剂组合物从被配置成经由隔离阀将低压液体输送到储存基质的流体计量系统排出。 溶剂组合物以相反的顺序输送到储存基质，使得输送到储存基质中的第一体积的液体是排出的最后一液体体积。 在存储矩阵内预先存在的液体被转移到与存储矩阵流体连通的流体蓄积器中。 流体蓄能器被包围在压力沉箱中，其可以响应于根据溶剂组成循环形成从流体容积位移传感器和压力传感器获得的传感器信号而被加压或减压。 当沉箱被加压时，作用在流体蓄液器上的压力导致储存基质中的溶剂组合物被排出通过隔离阀进入色谱柱。

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