Abstract: In order to perform a qualitative or quantitative analysis of an analyte in a sample in a simple, rapid and accurate manner where the sample can be automatically diluted without the need for an advanced device or operation, under little influence attributed to the analyte concentration in the sample, a strip is used which comprises at least two or more units arranged therein, each unit comprising: a space forming zone 2; a retention zone 5 in which a labeled first specific binding substance is retained; and a detection zone 6 in which a second specific binding substance is immobilized, so that the analyte in the sample is qualitatively or quantitatively analyzed based on a signal intensity obtained attributed to a specific binding reaction in the detection zone 6.

Abstract: In order to provide a specific binding analysis method capable of quantitatively or qualitatively determining an analyte in a sample in a simple, rapid and accurate manner with little influence of the prozone phenomenon, background and foreign matter, and a specific binding analysis apparatus used therefor, a database relating to a signal intensity attributed to a specific binding reaction is previously prepared for an individual sample containing a suspected analyte, a measurement pattern of a signal intensity of the sample is determined based on the database, and the concentration of the analyte in the sample is further determined.

Abstract: To enable accurate qualitative and quantitative analyses of an analyte in a sample without being influenced by a prozone phenomenon, there is disclosed a specific binding method including the steps of: bringing into contact a sample with a zone where a first specific binding substance labeled with a labeling material is retained, to allow an analyte to bind to the first specific binding substance; bringing into contact the sample with a first detection zone where a second specific binding substance is immobilized, to allow an excess of the analyte to bind to the second specific binding substance; bringing into contact the sample with a second detection zone where a substance identical to the analyte is immobilized, to allow the first specific binding substance to bind to the substance; respectively measuring the intensities of signal 1 and signal 2 obtained in the first detection zone and the second detection zone and attributed to the labeling material; and then determining the concentration of the analyte b