Abstract: Provided is a container for preparing a diluted solution of a biological sample to be used for biological sample analysis. Specifically, provided is a container for specimen dilution, including: an open; a first bottom; a second bottom formed on an inner side wall of the container; and a groove upwardly formed, on the inner side wall of the container, from the second bottom, in which the groove has a constant width equal to a width of the second bottom, or the groove has, at a lower end thereof, a width equal to the width of the second bottom and upwardly widens.

Abstract: Provided is a container for preparing a diluted solution of a biological sample to be used for biological sample analysis. Specifically, provided is a container for specimen dilution, including: an open; a first bottom; a second bottom formed on an inner side wall of the container; and a groove upwardly formed, on the inner side wall of the container, from the second bottom, in which the groove has a constant width equal to a width of the second bottom, or the groove has, at a lower end thereof, a width equal to the width of the second bottom and upwardly widens.

Abstract: An immunochromatographic test strip that achieves a shorter reaction completion time and excellent sensitivity is provided. The immunochromatographic test strip comprises: (1) a conjugate pad comprising a sample-supplying section supplying a sample possibly containing an analyte and a line-shaped conjugate section containing a conjugate in which an antibody or antigen immunologically reactive with the analyte is immobilized to a label on the downstream side relative to the sample-supplying section; and (2) an insoluble membrane support having at least one detecting section to which an antibody or antigen immunologically reactive with the analyte is immobilized, the lower surface of the sample-supplying section of the conjugate pad being not in contact with the upper surface of the insoluble membrane support, the lower surface of the conjugate section of the conjugate pad being in contact with the upper surface of the insoluble membrane support.

Abstract: An immunochromatographic test strip that achieves a shorter reaction completion time and excellent sensitivity is provided. The immunochromatographic test strip comprises: (1) a conjugate pad comprising a sample-supplying section supplying a sample possibly containing an analyte and a line-shaped conjugate section containing a conjugate in which an antibody or antigen immunologically reactive with the analyte is immobilized to a label on the downstream side relative to the sample-supplying section; and (2) an insoluble membrane support having at least one detecting section to which an antibody or antigen immunologically reactive with the analyte is immobilized, the lower surface of the sample-supplying section of the conjugate pad being not in contact with the upper surface of the insoluble membrane support, the lower surface of the conjugate section of the conjugate pad being in contact with the upper surface of the insoluble membrane support.

Abstract: The present invention provides a novel immunoassay method with high reaction specificity and high sensitivity. The present invention also provides a method for immunoassaying a target antigen utilizing reactivation of an apoenzyme, which includes simultaneously or sequentially adding a test sample to an antibody specific to the target antigen, the target antigen labeled with a coenzyme, an apo-D-amino acid oxidase, a D-amino acid, and a reagent for detecting a hydrogen peroxide produced by the oxidase.

Abstract: The present invention provides a novel immunoassay method with high reaction specificity and high sensitivity. The present invention also provides a method for immunoassaying a target antigen utilizing reactivation of an apoenzyme, which includes simultaneously or sequentially adding a test sample to an antibody specific to the target antigen, the target antigen labeled with a coenzyme, an apo-D-amino acid oxidase, a D-amino acid, and a reagent for detecting a hydrogen peroxide produced by the oxidase.

Abstract: A method for quantitatively determining a specific component in a biological specimen, which includes reacting a biological specimen, in the presence of an electron acceptor, with an enzyme which has an ability, by the dehydrogenation reaction, to oxidize the specific component or a substance derived from the specific component, and measuring the formed reductant of the electron acceptor, wherein the method avoids the influence of hemoglobin effectively if any contained in the specimen by using a measuring reagent containing albumin, thereby making an quantitative determination of the target component accurately; and a reagent for the quantitative determination.

Abstract: A method for quantitatively determining a specific component in a biological specimen, which includes reacting a biological specimen, in the presence of an electron acceptor, with an enzyme which has an ability, by the dehydrogenation reaction, to oxidize the specific component or a substance derived from the specific component, and measuring the formed reductant of the electron acceptor, wherein the method avoids the influence of hemoglobin effectively if any contained in the specimen by using a measuring reagent containing albumin, thereby making an quantitative determination of the target component accurately; and a reagent for the quantitative determination.

Abstract: A method for quantitatively determining a specific component in a biological specimen, which includes reacting a biological specimen, in the presence of an electron acceptor, with an enzyme which has an ability, by the dehydrogenation reaction, to oxidize the specific component or a substance derived from the specific component, and measuring the formed reductant of the electron acceptor, wherein the method avoids the influence of hemoglobin effectively if any contained in the specimen by using a measuring reagent containing albumin, thereby making an quantitative determination of the target component accurately; and a reagent for the quantitative determination.