A method for measuring fibroblast growth factor-23 (FGF-23) in a sample, which comprise the following steps:
(1) reacting, in an aqueous medium, FGF-23 in a sample with magnetic particles, a first antibody or a fragment thereof which binds to FGF-23, and a second antibody or a fragment thereof which binds to FGF-23, to form on the magnetic particles an immunocomplex comprising the first antibody or a fragment thereof which binds to FGF-23, FGF-23, and the second antibody or a fragment thereof which binds to FGF-23;
(2) collecting the magnetic particles in the reaction mixture after step (1) by magnetic force, and separating the magnetic particles collected by magnetic force from the other components; and
(3) measuring the immunocomplex on the magnetic particles separated in step (2).
The present invention provides a method for measuring FGF-23 in a sample, which have a high sensitivity and have a wide measurement range.
一种测定样品中成纤维细胞生长因子-23(FGF-23)的方法,包括以下步骤:
(1) 在
水介质中,将样品中的 FGF-23 与磁性颗粒、与 FGF-23 结合的第一
抗体或其片段、与 FGF-23 结合的第二
抗体或其片段反应,在磁性颗粒上形成由与 FGF-23 结合的第一
抗体或其片段、FGF-23 和与 FGF-23 结合的第二
抗体或其片段组成的免疫复合物;
(2) 通过磁力收集步骤(1)后反应混合物中的磁性颗粒,并将通过磁力收集的磁性颗粒与其他成分分离;以及
(3) 测量步骤(2)中分离出的磁性颗粒上的免疫复合物。
本发明提供了一种测量样品中 FGF-23 的方法,其灵敏度高,测量范围宽。