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    • 4. 发明授权
    • Latex agglutination assay
    • 乳胶凝集试验
    • US5231035A
    • 1993-07-27
    • US640037
    • 1991-01-11
    • Raymond F. Akers, Jr.
    • Raymond F. Akers, Jr.
    • G01N33/543G01N33/58
    • G01N33/54313G01N33/585Y10S436/805Y10S436/815Y10S436/816Y10S436/817Y10S436/818
    • Methods for determining the presence of a first ligand, preferably a hapten, in a sample suspected to contain the first ligand are provided, along with reagent systems and apparatus suitable for performing the methods. The methods depend upon a color visualization indicating the presence or absence of the first ligand in the sample. Preferred methods comprise contacting the sample with a reagent system which comprises: (1) colored particles which bear on their surface a second ligand which may be the same as or different than the first ligand; and (2) an amount of a receptor which is specific for the first ligand and the second ligand, wherein the amount is sufficient to stabilize the particles. The methods further comprise passing the contacted sample and reagent system through a filter, and then analyzing the color of the filtrate. The presence of ligand in the sample is established where the color of the filtrate is substantially different from the color of the ligand-bearing particles.
    • 提供了用于确定怀疑含有第一配体的样品中第一配体,优选半抗原存在的方法,以及适用于实施该方法的试剂系统和装置。 该方法取决于指示样品中第一配体存在或不存在的颜色可视化。 优选的方法包括使样品与试剂系统接触,试剂系统包括:(1)着色颗粒,其表面上具有可与第一配体相同或不同的第二配体; 和(2)对第一配体和第二配体特异的受体的量,其中该量足以使颗粒稳定。 所述方法还包括使接触的样品和试剂系统通过过滤器,然后分析滤液的颜色。 建立样品中配体的存在,其中滤液的颜色与含配体颗粒的颜色显着不同。