Rapid, improved immunoassays via the use of novel immune complex transfer techniques
申请人:Ciba Corning Diagnostics Corp.
公开号:EP0572217A1
公开(公告)日:1993-12-01
Inter alia, a method for increasing the sensitivity and accuracy of a binding assay conducted under sufficiently mild conditions characterised in that it comprises:
(a) reacting the analyte with a labeled specific binder and with a specific binder, which has been reversibly attached directly or indirectly to a first solid phase, to form a labeled specific binder-analyte-specific binder-optional component-first solid phase complex;
(b) separating the labeled specific binder-analyte and, in some cases, the specific binder from the optional component-first solid phase, to form a separated complex;
(c) reattaching the separated complex to a second optional component attached to a second solid phase via either an epitope on the analyte or an epitope on the specific binder; and
(d) determining the amount of the analyte present by measurement of the amount of the labeled specific binder attached to the second solid phase;
separation (b) being completed in 10 minutes or less, is disclosed.
一种在足够温和的条件下提高结合试验的灵敏度和准确性的方法,其特征包括
(a) 分析物与标记的特异性粘合剂和直接或间接可逆地附着在第一固相上的特异性粘合剂反应,形成标记的特异性粘合剂-分析物-特异性粘合剂-可选组分-第一固相复合物;
(b) 将标记的特异性粘合剂--分析物,在某些情况下还有特异性粘合剂从可选组分--第一固相中分离出来,形成分离的复合物;
(c) 通过分析物上的表位或特异性粘合剂上的表位,将分离的复合物与附着在第二固相上的第二可选成分重新连接;以及
(d) 通过测量附着在第二固相上的标记特异性粘合剂的量来确定分析物的存在量;
分离(b)在 10 分钟或更短时间内完成。