Multilayer analysis film for analyzing transaminase
    21.
    发明授权
    Multilayer analysis film for analyzing transaminase 失效
    用于分析转氨酶的多层分析膜

    公开(公告)号:US4897347A

    公开(公告)日:1990-01-30

    申请号:US773911

    申请日:1985-09-09

    摘要: A multilayer analysis film for assaying transaminase in a coupled reaction system by a kinetic method comprises (1) a porous layer containing a transaminase substrate, (2) a coloring indicator layer for the detection of hydrogen peroxide, and (3) a transparent support, integrally laminated in this order. Pyruvate oxidase is located in a large excess in the uppermost porous layer where a rate-determining step receives maximum exposure to oxygen in the air. By the use of the analysis film, transaminase activity can be assayed with high sensitivity.

    摘要翻译: 用于通过动力学方法测定偶联反应体系中的转氨酶的多层分析膜包括(1)含有转氨酶底物的多孔层,(2)用于检测过氧化氢的着色指示剂层,和(3)透明载体, 按顺序整体层压。 丙酮酸氧化酶位于最上面多孔层中的大量过量,其中速率确定步骤接受空气中最大的氧气暴露。 通过使用分析膜,可以高灵敏度地测定转氨酶活性。

    Quantitative analysis film
    22.
    发明授权
    Quantitative analysis film 失效
    定量分析膜

    公开(公告)号:US4503145A

    公开(公告)日:1985-03-05

    申请号:US352970

    申请日:1982-02-26

    CPC分类号: C12Q1/52 C12Q1/26 Y10S435/805

    摘要: An analysis film for assaying transaminase activity comprises a reagent layer containing pyruvic acid oxidase, a combination of a hydrogen donor and a coupler--which is capable of forming a cationic dye--and an anionic polymer. The cationic dye formed by the reaction with a color indicator composition for detecting hydrogen peroxide is fixed with the anionic polymer, thereby mobilization and diffusion of the cationic dye being prevented so that the analysis film achieves high detection sensitivity and high accuracy.

    摘要翻译: 用于测定转氨酶活性的分析膜包括含有丙酮酸氧化酶,氢供体和能够形成阳离子染料的成色剂的组合的试剂层和阴离子聚合物。 通过与用于检测过氧化氢的颜色指示剂组合物的反应形成的阳离子染料用阴离子聚合物固定,从而阻止阳离子染料的移动和扩散,使得分析膜实现高检测灵敏度和高精度。

    Dry analytical element containing self-developing substrate for use in
analysis of liquid
    26.
    发明授权
    Dry analytical element containing self-developing substrate for use in analysis of liquid 失效
    含有自发发光基底的干燥分析元件用于液体分析

    公开(公告)号:US5077011A

    公开(公告)日:1991-12-31

    申请号:US939856

    申请日:1986-12-09

    摘要: A dry analytical element for use in the measurement of activity of enzyme in an aqueous liquid, such as, body fluid, having one or more water-retaining layers. The enzyme has an optimum pH in a in pH range within which the dissociation of p-nitrophenol is insufficient for color formation. The layers of the element comprise a self-developing substrate having p-nitrophenol group attached to the molecular structure through an ether or ester linkage and a cationic polymer, said self-developing substrate and said cationic polymer being incorporated separately in different water-retaining carriers which are arranged to allow the layers to have liquid contact with each other.

    摘要翻译: 用于测量酶在水性液体(例如体液)中具有一个或多个保水层的活性的干燥分析元件。 该酶在pH范围内具有最佳pH,其中对硝基苯酚的解离不足以形成颜色。 元件的层包括具有通过醚或酯键连接到分子结构上的对硝基苯基的自显影底物和阳离子聚合物,所述自显影底物和所述阳离子聚合物分别并入不同的保水载体 其布置成允许层彼此液体接触。

    Multilayer analytical element
    29.
    发明授权
    Multilayer analytical element 失效
    多层分析元件

    公开(公告)号:US4671937A

    公开(公告)日:1987-06-09

    申请号:US626743

    申请日:1984-07-02

    摘要: A multilayer analytical element for analysis of analyte in a liquid sample comprising a liquid sample-spreading layer, a reagent layer containing a diazonium salt, and a liquid-impermeable light-transmissive support, being laminated in this order, in which said reagent layer contains a sulfonic acid group-containing polymer having at least 10 molar % of a repeating unit selected from those consisting of a sulfoalkyl group and sulfophenyl group. The analytical element can be an element comprising a porous reagent layer containing a diazonium salt and the liquid-impermeable light-transmissive support, being laminated in this order.

    摘要翻译: 用于分析液体样品中的分析物的多层分析元件,其包含液体样品扩散层,含有重氮盐的试剂层和不透液体的透光性载体,其中所述试剂层含有 具有至少10摩尔%的选自由磺基烷基和磺基苯基组成的重复单元的含磺酸基的聚合物。 分析元件可以是包含含有重氮盐的多孔试剂层和液体不可透过的透光性支撑体的元件,其顺序层叠。