Reagent used for determining factor VIII activity
    1.
    发明授权
    Reagent used for determining factor VIII activity 失效
    用于确定因子VIII活性的试剂

    公开(公告)号:US5506112A

    公开(公告)日:1996-04-09

    申请号:US819456

    申请日:1992-01-10

    摘要: To determine the factor VIII activity of a sample, the latter is reacted with a reagent containing thrombin, factor IXa.beta., phospholipids and calcium ions so as to form a factor VIIIa-factor IXa-phospholipid-calicum ion-containing complex. This complex is reacted with factor X so as to obtain activated factor X. The obtained factor Xa is reacted with chromogenic substrate so as to form a substance to be determined spectrophotometrically. Complex formation and activation of factor X are effected in one stage: The sample is mixed with a mixture of human thrombin, phospholipids, calcium ions, human factor IXa.beta., human factor X and, if desired, human factor XIa and human factor XIIa, as a complex-forming reagent.

    摘要翻译: 为了确定样品的因子VIII活性,后者与含有凝血酶,因子IXaβ,磷脂和钙离子的试剂反应,以形成VIIIa因子IXa-磷脂 - 含钙离子的复合物。 使该络合物与因子X反应,得到活化因子X.将得到的因子Xa与显色底物反应,形成分光光度法测定的物质。 因子X的复合物形成和活化在一个阶段进行:将样品与人凝血酶,磷脂,钙离子,人因子IXaβ,人因子X以及如果需要的人因子XIa和人因子XIIa的混合物混合, 作为复合物形成试剂。