Methods and compositions for enhancing sensitivity in the analysis of biological-based assays
申请人:QIAGEN Genomics, Inc.
公开号:US20030077595A1
公开(公告)日:2003-04-24
Methods are provided for detecting the binding of a first member to a second member of a ligand pair, comprising the steps of (a) combining a set of first tagged members with a biological sample which may contain one or more second members, under conditions, and for a time sufficient to permit binding of a first member to a second member, wherein said tag is correlative with a particular first member and detectable by non-fluorescent spectrometry, or potentiometry, (b) separating bound first and second members from unbound members, (c) cleaving the tag from the tagged first member, and (d) detecting the tag by non-fluorescent spectrometry, or potentiometry, and therefrom detecting the binding of the first member to the second member .
本发明提供了检测配体对中第一成员与第二成员结合的方法,包括以下步骤:(a) 在足以允许第一成员与第二成员结合的条件和时间下,将一组第一标记成员与可能含有一个或多个第二成员的生物样品结合、其中所述标记与特定的第一成员相关,并可通过非荧光光谱法或电位计法检测;(b) 将结合的第一和第二成员与未结合的成员分离;(c) 从标记的第一成员上裂解标记;(d) 通过非荧光光谱法或电位计法检测标记,并由此检测第一成员与第二成员的结合情况。