Terumo Kabushiki Kaisha

Fumihiko Chai

Takeyuki Moriuchi

Yusuke Komata

Provided is a means capable of measuring an analyte concentration with high accuracy without requiring fractionation of a biological component. The present invention relates to a method for measuring an analyte concentration in a specimen, including (1) preparing the specimen, (2) mixing a coloring reagent, an oxidoreductase, and a light-scattering adjustment reagent with the specimen to obtain an analysis sample having substantially the same scattered light as the specimen, and (3) measuring the analyte concentration by using the analysis sample.

Method, reagent, and chip for measuring analyte concentration in specimen

A blood glucose level measuring chip exhibits excellent blood spreading ability and can maintain a reaction rate of blood with a reagent, even where the blood has a high hematocrit value (Ht). The blood glucose level measuring chip includes a blood glucose level measuring reagent including a supply port through which blood is supplied, a flow path having the supply port formed at one end of the flow path, and a blood glucose level measuring reagent containing an aromatic hydrocarbon having at least one sulfonic acid group disposed on an inner wall defining the flow path, wherein a ratio A/B is 3.7 mmol/L or more to 184.8 mmol/L when A (mmol) represents the total molar amount of aromatic hydrocarbons contained in the blood glucose level measuring reagent, and B (L) represents a volume of a region in which the blood glucose level measuring reagent and the blood are dissolved.

Blood glucose level measuring chip and blood glucose level measuring device set

A composition for detecting an analyte in a blood sample includes: a coloring reagent; an oxidoreductase; and a refractive index adjuster.

Method, composition, and chip for detecting analyte in blood sample

A method for detecting an analyte in a blood sample includes dissolving a refractive index adjuster in the blood sample to obtain an analysis sample in which a difference in refractive index between a red blood cell and an extra-red blood cell fluid is reduced and detecting the analyte using the analysis sample.

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Yamanashi, Japan

Fumihiko Chai