Patent ID: 8524452
Filing Date: 2013-09-03
Classification: G01N

Abstract:
1. An immunoagglutination immunoassay for detecting and quantifying a target substance in a test sample comprising in sequential order: (a) bringing the test sample into contact with an agent, which agent inhibits a decrease in measured values, wherein said decrease is caused by an interfering substance(s) present in the test sample; and (b) subjecting the test sample to an antigen-antibody reaction with sensitized particles or with an anti-serum, wherein said agent is an ionic surfactant having a molecular weight of 1000 to 100,000, and said ionic surfactant being a polymer, wherein said polymer comprises a recurring unit represented by the following Formula [I]: wherein Ar represents a hydrophobic ring; X represents the ionic functional group; R wherein the sensitized particles or the antiserum specifically react with the target substance, and wherein upon performing steps (a) and (b), the target substance is capable of being detected or quantified by measuring the agglutination resulting from the antigen-antibody reaction with sensitized particles or with the anti-serum.