申请人:PHARMACIA DIAGNOSTICS AB
公开号:EP1467210A1
公开(公告)日:2004-10-13
The invention relates to a method for determining the binding capability of a structure (ligand) to an analyte, which method comprises:
i. applying the sample to an application zone for sample (ASZ) on a flow matrix in which transport of components present in the sample may take place (transport flow), the flow matrix further comprising:
a) optionally an application zone (AR*Z) for a binding reactant (Reactant* = R*) which is analytically detectable,
b) a detection zone (DZ) which is located downstream of ASZ and comprises another binding reactant (Capturer) firmly anchored to the matrix and in which a complex (signal complex) containing the Capturer and the analyte and/or Reactant* is formed during the method, and
ii. detecting the signal complex in the detection zone, the measured signal being used for determining the analyte,
wherein the flow matrix comprises at least one separation zone (SZ) between ASZ and DZ and this zone (SZ) exhibits a structure (ligand) having binding capability for the analyte, and the binding capability of the ligand for the analyte is determined. According to the invention, the flow matrix comprises at least one separation zone (SZ) between ASZ and DZ, which zone exhibits a structure (ligand) having binding capability for the analyte that is transported in the matrix. The invention also relates to a test kit comprising the flow matrix.
本发明涉及一种确定结构(配体)与分析物结合能力的方法,该方法包括
i. 将样品应用于流动基质上的样品应用区(ASZ),样品中的成分可在该应用区中发生迁移(迁移流),流动基质进一步包括: ii:
a) 可选的结合反应物(反应物* = R*)应用区(AR*Z),该反应物可进行分析检测、
b) 位于 ASZ 下游的检测区 (DZ),该检测区包含牢固固定在基质上的另一种结合反应物(捕获剂),在该方法中会形成包含捕获剂和被分析物和/或反应物*的复合物(信号复合物),以及
ii. 在检测区检测信号复合物,检测到的信号用于确定被分析物、
其中,流动基质包括 ASZ 和 DZ 之间的至少一个分离区 (SZ),该分离区 (SZ) 显示出与被分析物具有结合能力的结构(配体),并确定配体与被分析物的结合能力。根据本发明,流动基质包括 ASZ 和 DZ 之间的至少一个分离区 (SZ),该分离区显示的结构(配体)具有与基质中传输的分析物结合的能力。本发明还涉及一种包含流动基质的检测试剂盒。