Canon Medical Systems Corporation

Canon Kabushiki Kaisha

Satoru Sugita

Hirotoshi Tahara

Takahiro Masumura

According to one embodiment, a method of detecting or quantifying a detection target in a specimen includes: irradiating a reaction mixture containing composite particles and the specimen with light to promote binding between the composite particles and the detection target; and performing measurement on the reaction mixture irradiated with the light to detect or quantify the detection target. The composite particles each include a carrier particle including two or more regions having different physical properties on a surface, and an affinity substance carried on the carrier particle and having affinity to the detection target. The light can be absorbed by at least one of the two or more regions.

Method of detecting or quantifying detection target in specimen, composite particle, and reagent

An automatic analysis apparatus includes a reaction vessel configured to contain a reaction liquid in which a measuring object and a reagent are mixed with each other, an irradiation unit configured to irradiate the reaction vessel with irradiation light as predetermined incident light polarization, a measurement unit configured to measure light emitted from the reaction vessel, and a processor configured to process a signal having a specific polarization component obtained from the measurement unit and to analyze the measuring object. The specific polarization component is determined based on the condition of the reaction liquid.

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Otawara, Japan

Satoru Sugita