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    Qualitative and quantitative processes for reactive chemicals in liquids using doped sol-gel glasses
    73.
    发明授权
    Qualitative and quantitative processes for reactive chemicals in liquids using doped sol-gel glasses 失效
    使用掺杂溶胶凝胶眼镜的液体中反应性化学物质的定性和定量过程

    公开(公告)号：US5371018A

    公开(公告)日：1994-12-06

    申请号：US953358

    申请日：1992-09-30

    申请人： David Avnir ,  Michael Ottolenghi ,  Ovadia Lev

    发明人： David Avnir ,  Michael Ottolenghi ,  Ovadia Lev

    IPC分类号： B01J20/283 ,  B01J20/291 ,  C03C4/00 ,  G01N30/02 ,  G01N30/92 ,  G01N31/22 ,  G01N33/543 ,  G01N33/552 ,  G01N33/68 ,  G01N33/84 ,  G01N33/20

    CPC分类号： B01J20/291 ,  B01J20/283 ,  C03C4/0007 ,  G01N31/22 ,  G01N33/5436 ,  G01N33/552 ,  G01N33/6869 ,  G01N33/84 ,  B01J2220/54 ,  G01N30/02 ,  G01N30/92

    摘要： A process for qualitative or quantitative determination of a reactive chemical contained in a liquid sample by forming doped sol-gel glass pellets from a metal alkoxide, arranging the porous doped sol-gel glass pellets in a glass tube, contacting a liquid sample containing a reactive chemical with the porous doped sol-gel glass pellets contained in the glass tube, and measuring a length of a stained portion of the glass tube resulting from a color change in the sol-gel glass pellets. The sol-gel glass pellets are formed by a gelling step conducted at room temperature in the presence of a colorimetric reagent dopant which produces a color change in the presence of the reactive chemical, and a drying step conducted at not greater than 41.degree. C. The doped sol-gel glass pellets contain the colorimetric reagent dopant encapsulated therein and the encapsulated colorimetric reagent dopant is color changeable in the presence of the reactive chemical in the pores of the doped sol-gel glass pellets.

    摘要翻译： 一种用于通过从金属醇盐形成掺杂的溶胶 - 凝胶玻璃颗粒来定性或定量测定液体样品中所含的反应性化学品的方法，将多孔掺杂的溶胶 - 凝胶玻璃颗粒放置在玻璃管中，使含有反应性 与玻璃管中所含的多孔掺杂的溶胶 - 凝胶玻璃颗粒化学，并测量由溶胶 - 凝胶玻璃颗粒中的颜色变化导致的玻璃管的染色部分的长度。 溶胶 - 凝胶玻璃颗粒通过在室温下在存在反应性化学物质的情况下产生颜色变化的比色试剂掺杂剂的存在下进行胶凝化步骤而形成，并且干燥步骤在不大于41℃的条件下进行。 掺杂的溶胶 - 凝胶玻璃颗粒包含其中包含的比色试剂掺杂剂，并且包被的比色试剂掺杂剂在掺杂的溶胶 - 凝胶玻璃颗粒的孔隙中的反应性化学物的存在下是可颜色变化的。

    Chromatographic cassette
    74.
    发明授权
    Chromatographic cassette 失效
    色谱盒

    公开(公告)号：US4999285A

    公开(公告)日：1991-03-12

    申请号：US672568

    申请日：1984-11-15

    申请人： S. Nicholas Stiso

    发明人： S. Nicholas Stiso

    IPC分类号： G01N31/22 ,  G01N30/90 ,  G01N30/92 ,  G01N30/95 ,  G01N33/543 ,  G01N33/558 ,  G01N37/00

    CPC分类号： G01N33/558 ,  G01N33/54366 ,  Y10S435/81

    摘要： A chromatographic device is disclosed. The device comprises in combination a housing, a strip of bibulous material non-removably confined in the housing. The strip has a length and width only slightly less than the length and width of the inner walls of the housing. The inner walls of the housing have means attached thereto for supportively confining the strip in the housing. The strip is confined so that (1) the front and back of the strip are essentially free from contact with the walls of the housing and (2) the capillary action of the strip remains substantially unchanged, and (3), where the strip is paper, the strip is allowed to expand as it is traversed by the liquid medium. The bottom end of the housing contains means for enabling contact of a portion of the strip with the liquid medium. The housing further contains means for visually observing the strip and can also contain indicating means cooperative therewith to assist in determining the result of a chromatographic test. The present device has particular application in immunochromatography for the determination of the presence of an analyte suspected of being present in a sample.

    摘要翻译： 公开了一种色谱装置。 该装置组合有壳体，不可移除地限制在壳体中的吸水带材料。 条带的长度和宽度仅略小于外壳内壁的长度和宽度。 壳体的内壁具有连接到其上的装置，用于支撑地将条带限制在壳体中。 条带被限制，使得（1）带的前部和后部基本上不与壳体的壁接触，并且（2）条带的毛细作用保持基本不变，以及（3） 纸，当液体介质穿过时，允许条带膨胀。 壳体的底端包含用于使条带的一部分与液体介质接触的装置。 壳体还包含用于目视观察条带的装置，并且还可以包含与其配合的指示装置，以帮助确定色谱测试的结果。 本发明的装置在免疫层析中具有特别的应用，用于确定疑似存在于样品中的分析物的存在。

    Arrangement for measuring fluorescence polarization
    76.
    发明授权
    Arrangement for measuring fluorescence polarization 失效
    测量荧光偏振的布置

    公开(公告)号：US4548499A

    公开(公告)日：1985-10-22

    申请号：US470282

    申请日：1983-02-28

    申请人： Wolfgang Eisert ,  Wolfgang Beisker

    发明人： Wolfgang Eisert ,  Wolfgang Beisker

    IPC分类号： G01N15/14 ,  G01N21/21 ,  G01N21/64 ,  G01N30/02 ,  G01N30/84 ,  G01N30/88 ,  G01N30/92

    CPC分类号： G01N15/1434 ,  G01N21/6445 ,  G01N15/1459 ,  G01N2030/8429 ,  G01N21/21 ,  G01N30/02 ,  G01N30/88 ,  G01N30/92

    摘要： Arrangement for measuring the fluorescence polarization of cells or particles which are aligned individually along a flow stream illuminated by means of an illumination field wherein the cells are passed in succession through two light beams so as to excite fluorescence; the directions of polarization of the two excitation beams are perpendicular to one another; a pair of detector channels are provided to successively record the two polarization components of the fluorescence at both points of excitation; and an analysis system is provided which calculates the corrected degree of fluorescence for the individual cells from the measured values provided by the detector channels.

    摘要翻译： 用于测量沿着通过照明场照射的流动流单独排列的细胞或颗粒的荧光偏振的装置，其中细胞连续通过两个光束以激发荧光; 两个激发光束的极化方向彼此垂直; 提供一对检测器通道以在激励的两个点连续地记录荧光的两个偏振分量; 并且提供一种分析系统，其从检测器通道提供的测量值计算各个单元的校正的荧光程度。

    Thin layer and paper chromatography cones
    77.
    发明授权
    Thin layer and paper chromatography cones 失效
    薄层和纸层析锥

    公开(公告)号：US4261835A

    公开(公告)日：1981-04-14

    申请号：US34190

    申请日：1979-04-27

    申请人： Samuel M. Creeger

    发明人： Samuel M. Creeger

    IPC分类号： B01D15/08 ,  G01N30/52 ,  G01N30/60 ,  G01N30/92

    CPC分类号： B01D15/08 ,  G01N30/92 ,  G01N2030/528 ,  G01N30/6065

    摘要： This is an invention of paper chromatography and thin layer chromatography "baw-rar" (where "baw-rar" is Hebrew for separate) cones, hereon called PC and TLC cones, and other geometric shapes whose horizontal cross sections generally decrease in area as they are taken further from the base, with the adsorbent or absorbent layer decreasing in thickness from the base to the apex, to be used in PC and TLC work to reduce the horizontal and vertical spreading and diffusing of the developed spots. These will, for example, provide more easily and definitively determinable R.sub.f values, eliminate scraping of relatively large areas when scraping is necessary and increase the sensitivity of PC and TLC. The methods of use of the new PC and TLC cones are also disclosed herein.

    摘要翻译： 这是纸层析和薄层色谱“baw-rar”（其中“baw-rar”是希伯来文用于分离的）锥体的发明，其称为PC和TLC锥体，以及其水平横截面通常以面积减小的其他几何形状 它们从基部进一步取出，吸附剂或吸收层的厚度从基底到顶点减小，用于PC和TLC，以减少显影斑点的水平和垂直扩展和扩散。 例如，这些将提供更容易且明确的可确定的Rf值，当需要刮擦时，消除刮擦相对较大的区域并增加PC和TLC的灵敏度。 本文还公开了使用新的PC和TLC锥体的方法。

    Two-phase filter and thin layer chromatography process
    79.
    发明授权
    Two-phase filter and thin layer chromatography process 失效
    两相过滤器和薄层色谱法

    公开(公告)号：US4157299A

    公开(公告)日：1979-06-05

    申请号：US651670

    申请日：1976-01-22

    申请人： Robert A. Landowne

    发明人： Robert A. Landowne

    IPC分类号： G01N30/92 ,  G01N30/94 ,  B01D15/08

    CPC分类号： G01N30/94 ,  G01N30/92

    摘要： A process of using a two-phase gas or liquid filter and thin layer chromaraphy member having a filter portion and a chromatography portion. The sample is collected and analyzed on the same member. A developing solvent of substantially acrylonitrile-benzene-petroleum ether is used to allow the sample to chromatograph on the chromatography portion of the member.

    摘要翻译： 使用具有过滤部分和色谱部分的两相气体或液体过滤器和薄层色谱部件的方法。 收集样品并在同一成员上进行分析。 使用基本上丙烯腈 - 苯 - 石油醚的显影溶剂使得样品在成员的色谱部分上进行色谱。

    Graft thin layer chromatography
    80.
    发明授权
    Graft thin layer chromatography 失效
    接枝薄层色谱法

    公开(公告)号：US4065384A

    公开(公告)日：1977-12-27

    申请号：US735759

    申请日：1976-10-26

    申请人： Ramesh C. Pandey ,  Kenneth L. Rinehart, Jr.

    发明人： Ramesh C. Pandey ,  Kenneth L. Rinehart, Jr.

    IPC分类号： B01D15/08 ,  G01N30/90 ,  G01N30/92 ,  G01N30/94

    CPC分类号： B01D15/08 ,  G01N30/92 ,  G01N30/94

    摘要： A novel plate system for thin layer chromatography comprises a supporting plate coated over about 50-90% of its area with an adsorbent layer, the uncoated surface comprising at least one strip of uniform width along an end of the supporting plate. Two such plates grafted and clamped in a lap-joint so that the edges of the adsorbent layers are in intimate contact provide an assembly on which a chromatogram developed on the first plate can be transferred in whole or in part onto the second plate. The assembly and technique are particularly useful for preparative thin layer chromatography.

    摘要翻译： 用于薄层色谱的新型板系统包括用吸附剂层涂覆在其大约50-90％的区域上的支撑板，未涂覆的表面包括沿着支撑板的端部的至少一个均匀宽度的条带。 两个这样的板接枝并夹紧在搭接接头中，使得吸附剂层的边缘紧密接触提供了一个组件，其上在第一板上形成的色谱图可以全部或部分地转印到第二板上。 组装和技术对制备薄层色谱特别有用。