High throughput dispensing of fluids

    公开(公告)号:AU2002332440A1

    公开(公告)日:2003-03-03

    申请号:AU2002332440

    申请日:2002-08-01

    Abstract: This invention provides an apparatus and method for dispensing fluidic materials involving the employment of a hydrophilic capillary dimensioned for drawing a liquid therein in a volume less than about 10 microliters; a hydrophobic medium sealingly adjoining said capillary and defining an interface therewith for resisting flow of the liquid into the capillary beyond the interface; and a source of a pressure pulse for ejecting fluids drawn into the capillary.

    HIGH THROUGHPUT DISPENSING OF FLUIDS
    5.
    发明申请
    HIGH THROUGHPUT DISPENSING OF FLUIDS 审中-公开
    流体的高通量分配

    公开(公告)号:WO03016196A3

    公开(公告)日:2003-07-03

    申请号:PCT/US0224352

    申请日:2002-08-01

    Abstract: This invention provides an apparatus and method for dispensing fluidic materials involving the employment of a hydrophilic capillary (24) dimensioned for drawing a liquid therein in a volume less than about 10 microliters; a hydrophobic medium (26) sealingly adjoining said capillary (24) and defining an interface (22) therewith for resisting flow of the liquid into the capillary beyond the interface; and a source of a pressure pulse for ejecting fluids drawn into the capillary (24).

    Abstract translation: 本发明提供了一种用于分配流体材料的设备和方法,包括使用亲水性毛细管(24),该毛细管(24)的尺寸适合于以小于约10微升的体积抽取液体; 疏水介质(26),其密封地邻接所述毛细管(24)并限定与其界面(22),用于阻止液体流入毛细管越过界面; 以及用于喷射被吸入毛细管(24)中的流体的压力脉冲源。

    METHODS AND APPARATUS FOR MIXING POWDERED SAMPLES
    7.
    发明申请
    METHODS AND APPARATUS FOR MIXING POWDERED SAMPLES 审中-公开
    混合粉末样品的方法和装置

    公开(公告)号:WO2004110615A3

    公开(公告)日:2005-05-06

    申请号:PCT/US2004018833

    申请日:2004-06-14

    Abstract: Apparatus (1) for aspirating and dispensing powder, comprising a hopper (9) having a powder transfer port (11) and a suction port (13) for connection to a source of suction to establish an upward flow of air (or other gas) through the transfer port. A gas flow control system (1+) varies the upward flow through the transfer port to have different velocities greater than 0.0 m/s. These velocities include an aspirating velocity for aspirating powder into the hopper (9) through the transfer port (11) to form a fluidized bed of powder in the hopper, and a dispensing velocity less than the aspirating velocity but sufficient to maintain fluidization of the bed while allowing powder from the bed to gravitate through the transfer port for dispensing into one or more destination receptacles. A method of aspirating and dispensing powder is also disclosed. As well as a method of preparing a sample by mixing two or more different powders.

    Abstract translation: 用于吸入和分配粉末的设备(1)包括具有粉末输送口(11)的料斗(9)和用于连接到吸入源的吸入口(13),以建立向上的空气(或其它气体) 通过传输端口。 气体流量控制系统(1+)通过传送口改变向上的流动,以使其速度大于0.0m / s。 这些速度包括通过输送口(11)将粉末吸入料斗(9)的吸入速度,以在料斗中形成粉末流化床,并且分配速度小于抽吸速度,但足以保持床的流化 同时允许来自床的粉末通过输送口引入以分配到一个或多个目的地容器中。 还公开了一种吸入和分散粉末的方法。 以及通过混合两种或更多种不同粉末制备样品的方法。

    GAS CHROMATOGRAPH INJECTION VALVE
    10.
    发明申请
    GAS CHROMATOGRAPH INJECTION VALVE 审中-公开
    气体色谱注射阀

    公开(公告)号:WO02073184A2

    公开(公告)日:2002-09-19

    申请号:PCT/US0206810

    申请日:2002-03-06

    Abstract: A novel gas injection valve for injecting discrete charges of gas into a mobile phase or carrier stream is provided. Injection valves of the invention comprise a plurality of microvalves capable of receiving gas at different pressures and emitting discrete charges of gas at approximately the same pressure. The invention further provides for parallel injection valve arrays capable of injecting multiple samples substantially simultaneously and a method of injecting discrete gas samples at a controlled pressure to a high-resolution gas chromatograph.

    Abstract translation: 提供了一种用于将离散的气体注入流动相或载流子的新颖的气体注入阀。 本发明的注射阀包括能够接收不同压力的气体并以大致相同的压力发射离散的气体的多个微型阀。 本发明还提供了能够基本上同时喷射多个样品的平行喷射阀阵列以及将受控压力的离散气体样品注入高分辨率气相色谱仪的方法。

Patent Agency Ranking