申请人:BEHRINGWERKE Aktiengesellschaft
公开号:EP0515194A2
公开(公告)日:1992-11-25
Methods are disclosed for determining an analyte in a medium suspected of containing the analyte.
One method comprises treating a medium suspected of containing an analyte under conditions such that the analyte; if present, causes a photosensitizer and a chemiluminescent compound to come into close proximity. The photosensitizer generates singlet oxygen and activates the chemiluminescent compound when it is in close proximity. The activated chemiluminescent compound subsequently produces light. The amount of light produced is related to the amount of analyte in the medium. Preferably, at least one of the photosensitizer and chemiluminescent compound is associated with a surface which is usually a suspendible particle, and a specific binding pair member is bound thereto.
Another method comprises providing (1) a medium suspected of containing the analyte, (2) a label reagent comprising a first specific binding pair (sbp) member associated with a photochemically activatable chemiluminescent compound wherein the first sbp member is capable of binding to the analyte or to a second sbp member to form a complex related to the presence of the analyte. This method further comprises photochemically activating the chemiluminescent compound. The amount of luminescence generated by the chemiluminescent compound is detected. The amount thereof is related to the amount of analyte in the medium.
Compositions and kits are also disclosed.
本发明公开了测定疑似含有分析物的介质中分析物的方法。
其中一种方法包括处理疑似含有分析物的介质,处理条件是分析物(如果存在)会导致光敏剂和化学发光化合物接近。光敏剂产生单线态氧,并在靠近时激活化学发光化合物。被激活的化学发光化合物随后产生光。产生的光量与介质中分析物的含量有关。光敏剂和化学发光化合物中的至少一种最好与表面(通常是可悬浮颗粒)相关联,并与特定的结合对成员结合。
另一种方法包括:(1) 提供疑似含有分析物的介质;(2) 标签试剂,包括与光化学可激活的化学发光化合物相关的第一特异性结合对(sbp)成员,其中第一 sbp 成员能够与分析物或第二 sbp 成员结合,形成与分析物存在相关的复合物。该方法还包括光化学激活化学发光化合物。检测化学发光化合物产生的发光量。其数量与介质中分析物的数量相关。
此外,还公开了组合物和试剂盒。