Method for detecting the presence of a residual analyte in a sample.

摘要

A method for detecting an analyte in a liquid sample comprising: employing a labeled receptor that reacts with the analyte to form an analyte-receptor complex; Affixing the inside or next to a membrane receptor; exposing said membrane to the liquid sample so that the lateral capillary flow in the same takes place, carrying the liquid and the analyte-receptor complex, and any labeled receptor disunited into a test area located on the membrane in the flow path, said test zone having an analyte conjugate attached to the membrane representative to join disunited receptor to form a first analyte conjugate receptor complex that-as a result of the mark is visible to the eye or readable with an instrument signal; wherein the receptor is a broad spectrum can bind a family of analytes which have similar points of structural bonding and the method includes the step or step of employing an antibody that binds a portion of the analyte in competition with the receptor for which decreases assay sensitivity to the analyte.