@ Methods and assay kits are provided for detecting the presence of a member of a specific binding pair (sbp) in a whole blood sample. The sbp members consist of ligand and homologous receptor. In the method of the invention the whole blood sample, without separation of red blood cells, is combined in an aqueous buffered medium with a binding agent for the red blood cells in the sample. Where appropriate to the assay protocol, none or one or more members of a signal producing system, which is capable of producing a detectible signal, are included. At least one of the sbp members is substantially uniformly bound to a solid bibulous element. When the assay medium is contacted with a predetermined region of the solid bibulous element, the red blood cells will concentrate in an area on the bibulous element to the air/liquid interface. Furthermore, the medium will traverse the solid bibulous element. The remaining members of the signal producing system are then combined with the solid bibulous element. The signal produced as a result of the binding of the sbp members is detected and is related to the amount of the sbp member in the sample.
提供了检测全血样本中特异性结合对(sbp)成员存在的方法和检测试剂盒。sbp 成员包括
配体和同源受体。在本发明的方法中,在不分离红细胞的情况下,将全血样本与样本中红细胞的结合剂结合在
水缓冲介质中。在适合检测方案的情况下,不包括或包括一个或多个能够产生可检测信号的信号产生系统成员。至少有一个 sbp 成员基本上均匀地结合在固体微粒元件上。当检测介质与固体波状元件的预定区域接触时,红细胞将集中在波状元件上的空气/液体界面区域。此外,介质将穿过固体波状元件。然后,信号产生系统的其余成员与固体波状元件结合。检测 sbp 分子结合后产生的信号,与样品中 sbp 分子的数量相关。