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    DISPOSABLE CHROMATOGRAPHIC COLUMNS
    1.
    发明申请
    DISPOSABLE CHROMATOGRAPHIC COLUMNS 审中-公开
    可拆卸的色谱柱

    公开(公告)号：WO2007005508A3

    公开(公告)日：2009-04-16

    申请号：PCT/US2006025337

    申请日：2006-06-28

    Applicant: TELEDYNE ISCO INC

    Inventor： HODGIN DELWIN D ,  DAVISON DALE A ,  URH JOHN J

    IPC: B01D15/08 ,  B01D15/22 ,  G01N30/60

    CPC classification number: B01D15/22 ,  G01N30/603 ,  G01N30/6052 ,  G01N30/6091 ,  Y10T29/49604 ,  G01N30/6004

    Abstract: To make an inexpensive chromatographic column and perform chromatography with it, column walls and a column end with a port are molded integrally from plastic. A closure is integrally molded with a port as well. One type of closure includes part of a snap-on fastener integrally molded to it to cooperate with corresponding parts molded integrally with the column walls. In another type of closure for higher pressures, the closure is spin welded to the tubular walls. In still another type of closure for still higher pressures, a retaining plate is pressed into the column to hold the packing in place. The closures have channels molded into them radiating from a port and opening toward packing material such as silica beads or porous polymeric plugs. Filters and secondary seals may be located at the ends to prevent leakage of the packing material.

    Abstract translation: 为了制备便宜的色谱柱并进行色谱，柱状壁和带端口的柱端部由塑料一体成型。 封闭件也与端口一体模制。 一种类型的封闭件包括一体地模制到其上的卡扣紧固件的一部分，以与与柱壁一体模制的相应部件配合。 在用于更高压力的另一种类型的封闭件中，封闭件旋转焊接到管状壁。 在仍然更高压力的另一种类型的封闭件中，将保持板压入柱中以将填料保持在适当位置。 封闭件具有模制成它们的通道，其从端口辐射并向包装材料（例如二氧化硅珠或多孔聚合物塞）开口。 过滤器和二次密封件可以位于端部以防止包装材料泄漏。

    LIQUID CHROMATOGRAPHIC METHOD AND SYSTEM
    4.
    发明申请
    LIQUID CHROMATOGRAPHIC METHOD AND SYSTEM 审中-公开
    液相色谱方法和系统

    公开(公告)号：WO02068954A9

    公开(公告)日：2004-04-08

    申请号：PCT/US0205592

    申请日：2002-02-26

    Applicant: ISCO INC

    Inventor： ALLINGTON ROBERT W ,  DAVISON DALE A ,  BLAKLEY SCOTT L

    IPC: B01D15/12 ,  B01D15/16 ,  B01D15/24 ,  G01N1/00 ,  G01N1/38 ,  G01N30/02 ,  G01N30/22 ,  G01N30/24 ,  G01N30/32 ,  G01N30/46 ,  G01N30/74 ,  G01N30/88 ,  G01N33/00 ,  B01D15/08

    CPC classification number: G01N30/466 ,  B01D15/12 ,  B01D15/166 ,  B01D15/247 ,  G01N1/14 ,  G01N1/38 ,  G01N30/22 ,  G01N30/24 ,  G01N30/32 ,  G01N30/34 ,  G01N30/74 ,  G01N30/88 ,  G01N35/1095 ,  G01N35/1097 ,  G01N2001/383 ,  G01N2030/027 ,  G01N2030/324 ,  G01N2030/326 ,  G01N2030/347

    Abstract: To economically perform preparatory chromatography, a plurality of pumps (34) each having a corresponding one of a plurality of pistons and a corresponding one of a plurality of cylinders are driven by one motor (36) to draw and pump solvent (30, 32) simultaneously into corresponding columns (14). To form a gradient, the pumps are connected to two-way valves that are connected alternately to a first solvent and a second solvent, whereby the time said valve is in a first position controls the amount of solvent drawn from the first reservoir into said pumps and the amount of time in said second position controls the amount of said second solvent drawn from the second reservoir into said pumps and the solvent is mixed in the pumping systems. The detectors are photodiodes mounted to light guides (Fig. 15) in the flow cells that generate signals related to light absorbance and communicate with a controller, whereby the controller receives signals indicating solute between the light guides and causes collection of solute. An over-pressure system compensates for pressure over a predetermined level.

    Abstract translation: 为了经济地进行准备色谱法，由一个电动机（36）驱动多个具有多个活塞中的相应一个活塞和相应的一个气缸的多个泵（34），以抽吸和泵送溶剂（30,32） 同时进入相应的列（14）。 为了形成梯度，泵连接到交替地连接到第一溶剂和第二溶剂的二通阀，由此所述阀处于第一位置的时间控制从第一储存器抽吸到所述泵中的溶剂的量 并且所述第二位置中的时间量将从第二储存器抽出的所述第二溶剂的量控制在所述泵中，并且溶剂在泵送系统中混合。 检测器是光电二极管，安装在流光池中的光导（图15），其产生与吸光度相关的信号并与控制器通信，由此控制器接收指示光导之间的溶质并引起溶质的收集的信号。 过压系统补偿超过预定水平的压力。

    METHOD AND APPARATUS FOR WATER SAMPLING UTILIZING SOLID PHASE EXTRACTION
    5.
    发明专利
    METHOD AND APPARATUS FOR WATER SAMPLING UTILIZING SOLID PHASE EXTRACTION 未知

    公开(公告)号：CA2283781C

    公开(公告)日：2003-02-18

    申请号：CA2283781

    申请日：1998-03-10

    Applicant: ISCO INC

    Inventor： FIEDLER ROBERT R ,  DAVISON DALE A

    IPC: G01N1/14 ,  G01N1/34 ,  G01N1/40 ,  G01N33/18 ,  G01N1/00

    Abstract: A method and apparatus for water sampling utilizing on-site solid phase extraction that permits high sample flow rates and eliminates the requiremen t for sample storage. Samples are collected at a relatively high flow rate and then temporarily stored under pressure before passing through a solid phase extraction device (40) at a slower rate commensurate with the flow rate tolerance of the device. Each sample quantity is also automatically measured , eliminating the requirement for sample storage and subsequent manual quantit y measurement and/or transportation to a laboratory.

    METHOD AND APPARATUS FOR WATER SAMPLING UTILIZING SOLID PHASE EXTRACTION
    6.
    发明专利
    METHOD AND APPARATUS FOR WATER SAMPLING UTILIZING SOLID PHASE EXTRACTION 未知

    公开(公告)号：CA2283781A1

    公开(公告)日：1998-09-17

    申请号：CA2283781

    申请日：1998-03-10

    Applicant: ISCO INC

    Inventor： FIEDLER ROBERT R ,  DAVISON DALE A

    IPC: G01N1/14 ,  G01N1/34 ,  G01N1/40 ,  G01N33/18 ,  G01N1/00

    Abstract: A method and apparatus for water sampling utilizing on-site solid phase extraction that permits high sample flow rates and eliminates the requirement for sample storage. Samples are collected at a relatively high flow rate and then temporarily stored under pressure before passing through a solid phase extraction device (40) at a slower rate commensurate with the flow rate tolerance of the device. Each sample quantity is also automatically measured, eliminating the requirement for sample storage and subsequent manual quantity measurement and/or transportation to a laboratory.

    7.
    发明专利
    未知

    公开(公告)号：DE06004709T1

    公开(公告)日：2007-05-03

    申请号：DE06004709

    申请日：2006-03-08

    Applicant: TELEDYNE ISCO INC

    Inventor： DAVISON DALE A

    IPC: B01D15/00

    Abstract: A bubbler is positioned within a solvent reservoir of a chromatographic system with its opening near the bottom of the system to measure the pressure of solvent. The bubbler may use air or may use helium or some other gas so that the solvent can be purged of excess air while its level is being monitored by the bubbler. The bubbler provides a depth signal to a microcontroller that records the drop in pressure and projects a low level ofpressure at which point solvent should be replenished. The microprocessor may provide a signal to the operator or terminate operation or automatically replenish solvent depending upon the program.

    Method and apparatus for water sampling utilizing solid phase extraction
    8.
    发明专利
    Method and apparatus for water sampling utilizing solid phase extraction 未知

    公开(公告)号：AU6693798A

    公开(公告)日：1998-09-29

    申请号：AU6693798

    申请日：1998-03-10

    Applicant: ISCO INC

    Inventor： FIEDLER ROBERT R ,  DAVISON DALE A

    IPC: G01N1/14 ,  G01N1/34 ,  G01N1/40 ,  G01N33/18 ,  G01N1/00

    Abstract: A method and apparatus for water sampling utilizing on-site solid phase extraction that permits high sample flow rates and eliminates the requirement for sample storage. Samples are collected at a relatively high flow rate and then temporarily stored under pressure before passing through a solid phase extraction device at a slower rate commensurate with the flow rate tolerance of the device. Each sample quantity is also automatically measured, eliminating the requirement for sample storage and subsequent manual quantity measurement and/or transportation to a laboratory.

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