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    • 2. 发明授权
    • Elements for analysis of calcium
    • 钙分析要素
    • US4594225A
    • 1986-06-10
    • US775709
    • 1985-09-13
    • Kazumi AraiMikio KoyamaKenichiro Okaniwa
    • Kazumi AraiMikio KoyamaKenichiro Okaniwa
    • G01N33/84G01N21/78G01N31/00G01N31/22G01N33/52
    • G01N31/22
    • An improved multilayer analytical element for the determination of calcium comprising a liquid impermeable, optically transparent support; at least one reagent layer positioned with a first side on said support and containing at least one reagent capable of reacting with a calcium component in a fluid sample; and at least one porous developing layer on the second side of said reagent layer, said porous developing layer being permeable to calcium from said fluid sample thereby transporting said calcium to said reagent layer. The improvement comprises at least one of said reagent layer and developing layer containing a basic substance of the formula M.sub.v H.sub.w PO.sub.4 .multidot.ZH.sub.2 O wherein M is lithium, sodium or potassium; v is an integer of 2 or 3 and w is an integer of 0 or 1 provided that v plus w equals 3; and Z is 1/2 when M is lithium, 0, 2 or 12 when M is sodium and 0 or 8 when M is potassium; and said reagent layer contains (i) 3,3'-bis[N,N-di(carboxymethyl)aminomethyl]-o-cresolphthalein and (ii) 8-hydroxyquinoline or a derivative thereof.
    • 一种用于测定钙的改进的多层分析元件,其包含不透液体,光学透明的载体; 至少一个试剂层,其具有位于所述载体上的第一侧,并含有至少一种能够与流体样品中的钙组分反应的试剂; 以及在所述试剂层的第二侧上的至少一个多孔显影层,所述多孔显影层可从所述流体样品渗透钙,从而将所述钙输送到所述试剂层。 该改进包括至少一个所述试剂层和显影层,其含有式MvHwPO4xZH2O的碱性物质,其中M是锂,钠或钾; v是2或3的整数,w是0或1的整数,条件是v plus w等于3; 当M为锂时,Z为1/2,当M为钠时Z为0或2,当M为钾时为0或8; 并且所述试剂层含有(i)3,3'-双[N,N-二(羧甲基)氨基甲基] - 邻 - 甲酚酞和(ii)8-羟基喹啉或其衍生物。
    • 10. 发明授权
    • Analytical element and method of use
    • 分析要素和使用方法
    • US4430436A
    • 1984-02-07
    • US329034
    • 1981-12-09
    • Mikio KoyamaShozo KikugawaKenichiro OkaniwaKiyoshi Tamaki
    • Mikio KoyamaShozo KikugawaKenichiro OkaniwaKiyoshi Tamaki
    • G01N21/78G01N31/22G01N33/52G01N33/54
    • G01N33/525G01N31/22Y10S436/81Y10S525/902Y10T428/254Y10T428/2998Y10T428/31536
    • An analytical element for analysis of a liquid having an interconnected void structure zone positioned on one side of a liquid-impermeable, light-transmissive support, being characterized in that said interconnected void structure zone comprises a bound particulate structure which is a three-dimensional lattice, being non-swellable in the liquid and having interconnected voids with a void volume of 25 to 85% among the particles to provide transport of said liquid, the material for said bound particulate structure being non-swellable in and impermeable to said liquid and said bound particulate structure being constituted of heat-stable, organic polymer particle units having reactive groups with particle sizes of 1 to 350 microns which are chemically bonded directly to each other through said reactive groups in the areas of contact. A method of analysis utilizing the analytical element in immunoassay is also disclosed.
    • 一种用于分析液体的分析元件,其具有位于不透液体的透光支架的一侧上的互连的空隙结构区域,其特征在于,所述互连的空隙结构区域包括结合的颗粒结构,其是三维网格 在液体中不溶胀并且在颗粒之间具有25至85%的空隙体积的互连空隙以提供所述液体的输送,所述结合的颗粒结构的材料在所述液体中是不溶胀的且不可渗透的,并且所述 结合的颗粒结构由具有1至350微米的反应性基团的热稳定的有机聚合物颗粒单元构成,其通过接触区域中的所述反应性基团彼此直接化学键合。 还公开了利用免疫测定中的分析元件的分析方法。