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。

    Process for producing plastic tubing of a selected length, wall
thickness and inner diameter
    3.
    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。

    Sample probe with temperature monitoring and/or control
    4.
    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。

    Sample probe
    5.
    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。