Ion-selective electrode
    1.
    发明授权
    Ion-selective electrode 失效
    离子选择电极

    公开(公告)号:US5413685A

    公开(公告)日:1995-05-09

    申请号:US128236

    申请日:1993-09-29

    IPC分类号: G01N27/333

    CPC分类号: G01N27/333

    摘要: An ion-selective electrode comprises an ion-sensing membrane, an internal electrode adhered to the ion-sensing membrane, and a lead connected to said internal electrode. The internal electrode used comprises a plurality of metallic wires arranged into a grating or a mesh. The wires comprises a metal core and a surface layer of a salt of the metal. The metal of the core is silver and the salt of the metal is a silver halide selected from the group consisting of silver bromide, silver chloride and silver iodide. At least a part of the internal electrode is buried inside the ion-sensing membrane. Various components, the ion-sensing membrane, the internal electrode, the lead, an external terminal, are disposed in a flow-through cell having a flow path formed therein, through which path a sample solution is passed, to constitute the ion-selective electrode. In the flow-through cell is disposed a means of maintaining the humidity to feed water vapor therefrom to the ion-sensing membrane. This structure, even when the ion-sensing membrane has a complicated configuration such as concave or convex surface, enables the establishment of good adhering conditions between the internal electrode and the ion-sensing membrane while retaining the complicated configuration of the ion-sensing membrane without reducing the effective contact areas of the ion-sensing membrane and the internal electrode.

    摘要翻译: 离子选择性电极包括离子感测膜,粘附到离子感测膜的内部电极和连接到所述内部电极的引线。 使用的内部电极包括布置成光栅或网格的多根金属线。 电线包括金属芯和金属盐的表面层。 芯的金属是银,金属的盐是选自溴化银,氯化银和碘化银的卤化银。 内部电极的至少一部分被埋在离子感测膜的内部。 各种成分,离子感测膜,内部电极,引线,外部端子配置在具有形成在其中的流路的流通池中,通过该流路通过样品溶液以构成离子选择性 电极。 在流通池中设置有保持湿度以将水蒸汽从其中供给到离子感测膜的手段。 这种结构即使当离子感测膜具有诸如凹凸表面的复杂构造时,也能够在保持离子感测膜的复杂结构而在内部电极和离子感测膜之间建立良好的粘附条件而没有 减少离子感测膜和内部电极的有效接触面积。

    Solid-state ion sensor
    2.
    发明授权
    Solid-state ion sensor 失效
    固态离子传感器

    公开(公告)号:US5505836A

    公开(公告)日:1996-04-09

    申请号:US219259

    申请日:1994-03-29

    CPC分类号: G01N27/3335 G01N27/403

    摘要: The solid-state ion sensor of the present invention comprises an inner electrode comprising a metal and a water-insoluble salt of the metal which covers at least a part of the surface of the metal, an ion-selective membrane selectively responsive to the ion species to be determined, and an intermediate layer comprising a hydrophilic polymeric membrane provided between the inner electrode and the ion-selective membrane. The inner electrode comprises a metal and a halogenide of the metal which covers at least a part of the surface of the metal. In the hydrophilic polymeric membrane is dispersed a hydrophilic electrolyte having halogen ions same as or different from those constituting the halogenide with the weight ratio of the electrolyte and the polymer [(electrolyte) wt. %/(polymer) wt. %] being at least 1/100. A polymeric ion-conductor can be used as the hydrophilic polymeric membrane.

    摘要翻译: 本发明的固体离子传感器包括内部电极,其包含覆盖金属表面的至少一部分的金属和金属的水不溶性盐,选择性地响应离子种类的离子选择膜 以及包含设置在内部电极和离子选择性膜之间的亲水性聚合物膜的中间层。 内部电极包括覆盖金属表面的至少一部分的金属的金属和卤化物。 在亲水性聚合物膜中分散有具有与构成卤化物的卤素离子相同或不同的卤素离子的亲水电解质,其电解质和聚合物的重量比[(电解质)wt。 %/(聚合物)wt。 %]至少为1/100。 聚合物离子导体可用作亲水性聚合物膜。

    Ion sensor
    4.
    发明授权
    Ion sensor 失效
    离子传感器

    公开(公告)号:US5472590A

    公开(公告)日:1995-12-05

    申请号:US354643

    申请日:1994-12-13

    CPC分类号: G01N27/414 G01N27/3335

    摘要: An ion sensor having an ion selectivity, which comprises an internal electrode of metal/metal salt, composed of an electroconductive layer of at least one metal and a layer of an insoluble salt of the metal in contact with the electroconductive layer, an ion selective membrane whose supporting membrane is composed of a hydrophobic polymer, and an intermediate layer capable of keeping water molecules, provided between the internal solid electrode and the ion selective membrane, where the organic compound having a water-keeping property is polymethylene glycol, polyethylene glycol or polypropylene glycol, each having a molecular weight of 200 to 600, and the inorganic compound having a water-keeping property is calcium chloride, gold chloride, magnesium perchlorate, magnesium fluoride or vanadium chloride dioxide, is suitable for analysis of specific ion species in a biological fluid with practically prolonged maintenance of properties of electrode.

    摘要翻译: 一种具有离子选择性的离子传感器,其包括金属/金属盐的内部电极,其由至少一种金属的导电层和与导电层接触的金属的不溶性盐层,离子选择性膜 其内部固体电极与离子选择性膜之间具有疏水性聚合物和能够保持水分子的中间层,其中具有保水性的有机化合物为聚亚甲基二醇,聚乙二醇或聚丙烯 乙二醇,分子量为200〜600,具有保水性的无机化合物为氯化钙,氯化金,高氯酸镁,氟化镁或二氯化钒,适用于分析生物中的特定离子种类 流体与电极性能几乎延长。