Process for producing plastic tubing of a selected length, wall
thickness and inner diameter
    1.
    发明授权
    Process for producing plastic tubing of a selected length, wall thickness and inner diameter 失效
    用于生产所选长度,壁厚和内径的塑料管的方法

    公开(公告)号:US5486330A

    公开(公告)日:1996-01-23

    申请号:US176596

    申请日:1994-01-03

    IPC分类号: B29C55/22

    CPC分类号: B29C55/22

    摘要: Process and apparatus for producing plastic membrane tubing of a selected length, wall thickness and inner diameter from a commercially-available tubing while retaining tubing end portions which are readily connected by conventional tubing connections to the tubing leads for an associated analytical apparatus, involving a controlled heating and a rapid stretching of the heated tubing by fixing a first end of the tubing and application of a constant tensile force to a second end of the tubing to stretch the tubing a desired amount.

    摘要翻译: 用于生产具有所选长度,壁厚和内径的塑料膜管的方法和装置,其中可以从商业上可获得的管道同时保持通过常规管道连接容易地连接到用于相关联的分析装置的管道引线的管道端部部分, 通过固定管道的第一端并对管道的第二端施加恒定的张力来加热和快速拉伸加热的管道,以将管道拉伸所需的量。

    Serpentine coil spectrophotometer cell
    2.
    发明授权
    Serpentine coil spectrophotometer cell 失效
    蛇形线圈分光光度计电池

    公开(公告)号:US5416576A

    公开(公告)日:1995-05-16

    申请号:US176974

    申请日:1994-01-03

    IPC分类号: G01N21/05

    摘要: A spectroscopic detector cell which is particularly suited to the analysis of low flowrate and small volume liquid samples in micro-flow injection analysis or titration and microbore, high pressure liquid chromatography, wherein interference from bubbles in the flow path of the light passing through the cell is substantially eliminated by using a serpentine coil of small-bore, transparent(to the light employed for a given analysis), overlapping tubing for carrying the liquid to be analyzed at a high enough velocity to sweep away any otherwise interfering bubbles that might be formed in the liquid, and by immersing the coil in a second fluid (a gas or a liquid) which possesses the same refractive index as the tubing material and which also is transparent to the light employed for a given analysis.

    摘要翻译: 特别适用于微流注射分析或滴定和微孔高压液相色谱分析低流量和小体积液体样品的光谱检测器电池,其中通过电池的光的流动路径中的气泡的干扰 通过使用小孔,透明(对于给定分析使用的光)的蛇形线圈基本上消除,用于以足够高的速度承载要分析的液体的重叠管,以消除可能形成的任何其他干扰的气泡 在液体中,并且通过将线圈浸入具有与管材料相同的折射率的第二流体(气体或液体)中,并且对于给定分析所使用的光也是透明的。

    Sample probe
    4.
    发明授权
    Sample probe 失效
    样品探针

    公开(公告)号:US5317932A

    公开(公告)日:1994-06-07

    申请号:US843687

    申请日:1992-02-28

    摘要: An apparatus for use in determining the presence and/or concentration of one or more selected materials in a matrix stream of materials within a process pipe, reactor or other process vessel, including (a) a support member having a first, internal end for inserting into the matrix stream when the apparatus is placed in service and a second end positioned externally of the pipe, reactor or other vessel in use, wherein the support member defines a groove therein of which at least a portion extends into the matrix stream in use, and (b) a conduit, for example a capillary membrane, positioned and supported substantially wholly within at least that portion of the groove in the support member which extends into the matrix stream in use.

    摘要翻译: 一种用于确定过程管道,反应器或其它处理容器内的基质料流中一种或多种所选材料的存在和/或浓度的装置,其包括(a)支撑构件,所述支撑构件具有第一内端,用于插入 当设备投入使用时进入基质流,而第二端位于使用中的管,反应器或其他容器的外部,其中支撑构件在其中限定至少一部分在使用中延伸到基质流中的凹槽, 和(b)导管,例如毛细管膜,其基本上完全位于支撑构件中的凹槽的至少部分内,其在使用中延伸到基质流中。

    Sample probe with temperature monitoring and/or control
    5.
    发明授权
    Sample probe with temperature monitoring and/or control 失效
    带温度监控和/或控制的样品探针

    公开(公告)号:US5398559A

    公开(公告)日:1995-03-21

    申请号:US986838

    申请日:1992-12-08

    摘要: An apparatus for use in determining the presence and/or concentration of one or more selected materials in a given stream or aggregation in a conduit or vessel, the apparatus comprising (a) a support member constructed from a thermally conductive material and having a first, internal end for inserting into the stream or aggregation when the apparatus is placed in service and a second end positioned externally of the conduit or vessel in use, wherein the support member defines a groove therein of which at least a portion extends into the stream or aggregation in use, (b) a conduit positioned and supported substantially wholly within at least that portion of the groove in the support member which extends into the stream or aggregation in use, and (c) a temperature monitoring device positioned within the support member, whereby the temperature of the conduit/stream or aggregation interface may be measured by thermal conduction from the supporting groove portion of the support member to the temperature monitoring device contained within the support member.

    摘要翻译: 一种用于确定在导管或容器中的给定流或聚集体中的一种或多种所选材料的存在和/或浓度的装置,所述装置包括(a)由导热材料构成并具有第一, 内部端部,用于当设备投入使用时插入流或聚集体,以及位于使用中的导管或容器外部的第二端,其中支撑构件限定其中至少一部分延伸到流或聚集体中的凹槽 在使用中,(b)导管,其基本上完全位于支撑构件中的凹槽的至少部分内,所述凹槽在使用中延伸到流或聚集体中,以及(c)位于支撑构件内的温度监测装置,由此 导管/流或聚集界面的温度可以通过从支撑构件的支撑槽部分到th的热传导来测量 e温度监测装置包含在支撑构件内。

    Coaxial tubular sequestering device for micro spheres and cells
    6.
    发明授权
    Coaxial tubular sequestering device for micro spheres and cells 失效
    用于微球和细胞的同轴管状隔离装置

    公开(公告)号:US07625762B1

    公开(公告)日:2009-12-01

    申请号:US11308207

    申请日:2006-03-12

    IPC分类号: G01N1/18

    摘要: A device for the separation of small particles or cells from a fluid suspension of the same is described. The device includes a coaxial tubular design in which the inner tube is a micro porous tube that allows the passage of liquids and certain particulates up to a certain size cut-off, and the outer tube allows for the collection of passed fluids. Inlet and outlet ports allow the introduction and flushing of components of interest. Embodiments of the device can be used for the separation of blood components, the sequestering of micro spheres used in micro-sphere-based immuno assay, and sample filtration. Other applications are not precluded. Another field of application for this device is in the separation of plasma from red blood cells. The red blood cells will not pass through the membrane due to their size, but plasma will.

    摘要翻译: 描述了用于将小颗粒或细胞与其流体悬浮液分离的装置。 该装置包括同轴管状设计,其中内管是允许液体和某些颗粒通过一定尺寸的切口的微孔管,并且外管允许收集通过的流体。 入口和出口允许引入和冲洗感兴趣的组件。 该装置的实施方案可用于分离血液成分,用于微球体免疫测定的微球的隔离和样品过滤。 其他应用不排除。 该装置的另一个应用领域是将血浆与红细胞分离。 红细胞由于其大小而不会通过膜,而是等离子体。

    Sequential injection liquid-liquid extraction

    公开(公告)号:US06613579B2

    公开(公告)日:2003-09-02

    申请号:US09773464

    申请日:2001-02-02

    申请人: Duane K. Wolcott

    发明人: Duane K. Wolcott

    IPC分类号: G01N134

    摘要: Apparatus and method for sequential injection liquid-liquid extraction analysis. Under the control of a bidirectional precision pump, a stream-selection valve, and a microprocessor, a series of liquid zones is built up in a holding/mixing coil. The liquid zones are transferred from the holding/mixing coil to a separation cell. After phase separation into an extract and a raffinate, the extract is withdrawn from the separation cell and sent to a detector, which determines the amount of a component which was extracted from a sample by an extraction solvent. The principal advantages of this automated technology are elimination of the need for dynamic phase separation; on-line pre-extraction chemical conditioning; a substantial reduction in solvent, reagent, and sample usage; and a similar substantial reduction in waste generation.

    In-line filter probe for process analysis
    8.
    发明授权
    In-line filter probe for process analysis 失效
    用于过程分析的在线过滤器探头

    公开(公告)号:US06499362B1

    公开(公告)日:2002-12-31

    申请号:US09683222

    申请日:2001-12-03

    申请人: Duane K. Wolcott

    发明人: Duane K. Wolcott

    IPC分类号: G01N100

    摘要: An in-line filter probe for process analysis. The probe, which has a U-shaped porous tube mounted on a support and sealed at the tube's midsection, is placed in a process stream to provide filtered samples of the stream.

    摘要翻译: 用于过程分析的在线过滤器探头。 探针具有安装在支撑体上并被密封在管的中部的U形多孔管,放置在工艺流中以提供流的过滤样品。

    Pretreatment of ion exchange membrane
    9.
    发明授权
    Pretreatment of ion exchange membrane 失效
    离子交换膜的预处理

    公开(公告)号:US4724050A

    公开(公告)日:1988-02-09

    申请号:US24960

    申请日:1987-03-12

    IPC分类号: G01N27/28 G01N27/40 B01D59/40

    CPC分类号: G01N27/40

    摘要: A method for electrolytically pretreating a cation exchange membrane by partitioning a first aqueous electrolyte solution from a second aqueous electrolyte solution with the membrane and then passing an electrical current through the system so that the cations of the first solution electro-migrate through the membrane into the second solution. The cation composition of the first solution being more than 99.99% of hydrogen ion and a single cation moiety selected from the group consisting of alkali metal cations and alkaline earth cations, the cation composition of the second solution consisting essentially of the same cation composition as the first solution. The result is a membrane that is almost completely equilibrated with the cations of the first solution. The pretreated membrane is especially suitable for use in the sensor for chemical analysis described in U.S. Pat. No. 4,333,810.

    摘要翻译: 一种通过将第一含水电解质溶液与第二含水电解质溶液与膜隔开并然后使电流通过该系统使得第一溶液的阳离子电迁移穿过该膜的方法来电离预处理阳离子交换膜的方法, 第二个解决方案。 第一溶液的阳离子组成大于99.99%的氢离子和选自碱金属阳离子和碱土金属阳离子的单一阳离子部分,第二溶液的阳离子组成基本上由与 第一个解决方案。 结果是几乎完全与第一溶液的阳离子平衡的膜。 预处理的膜特别适用于美国专利中描述的用于化学分析的传感器。 第4,333,810号。

    Sampling probe for solutions containing soluble solids or high concentrations of dissolved solids
    10.
    发明授权
    Sampling probe for solutions containing soluble solids or high concentrations of dissolved solids 失效
    采样探针用于含有可溶性固体或高浓度溶解固体的溶液

    公开(公告)号:US08365616B1

    公开(公告)日:2013-02-05

    申请号:US12883775

    申请日:2010-09-16

    IPC分类号: G01N1/26 G01N1/16 G01N1/00

    摘要: An analytical system for solutions containing soluble solids or high concentrations of dissolved solids. The system includes a container having upper and lower portions; a lead an/or a tubing line extending into the upper portion of the container, for withdrawing a portion of a gas in the upper portion of the container; and a sampling probe extending into the lower portion of the container, for withdrawing a portion of a sample of a liquid or of a mixture of a liquid and a solid. The sampling probe is a probe support shaft which may be provided with a filter for separating liquid and solid phases from one another if the sample is a liquid-solid mixture. Gas in the headspace above the liquid or the liquid-solid mixture can be withdrawn through the lead and/or the tubing line.

    摘要翻译: 用于含有可溶性固体或高浓度溶解固体的溶液的分析系统。 该系统包括具有上部和下部的容器; 延伸到容器的上部的铅线或管线,用于抽出容器上部的一部分气体; 以及延伸到容器的下部的取样探针,用于取出液体或液体和固体的混合物的一部分样品。 采样探针是探针支撑轴,如果样品是液体 - 固体混合物,其可以设置有用于将液相和固相彼此分离的过滤器。 在液体或液体 - 固体混合物上方的顶部空间中的气体可以通过引线和/或管线排出。