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AssigneeDenka Seiken Co., Ltd.
InventorsYasunori Minakawa, Michie Saito, Hiroshi Matsui
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A measurement value lowering inhibitor for immunoassay method that is capable of enhancing the accuracy of immunoassay method through suppressing of any influences of interfering substances existing in an analyte sample; and using the inhibitor, an immunoassay method in which any measurement value lowering by interfering substances is suppressed and a reagent for immunoassay method. The measurement value lowering inhibitor for immunoassay method used to suppress any measurement value lowering by interfering substances is comprised of an ionic surfactant consisting of a polymer obtained by polymerization of a hydrophobic cyclic monomer having an ionic functional group, which has a molecular weight of 1000 to 10×104.
An agent for inhibiting decrease in measured values in immunoassays, caused by an interfering substance(s), which agent is an ionic surfactant having a molecular weight of 1000 to 100,000, said ionic surfactant being a polymer in which a hydrophobic cyclic monomer(s) having an ionic functional group(s) is(are) polymerized.
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