Sekisui Medical Co., Ltd.

Tomohisa Nishio

Satoshi Machida

Osamu Miyazaki

Mitsuaki Yamamoto

Kazuo Nakanishi

Yoshimasa Banba

Kengo Oonishi

Satoko Seo

Mieko Ota

A method for controlling MNPT is required. Coexistence of a specific metal ion with tissue thromboplastin enables MNPT to be controlled/adjusted to a desired time. Coexistence of the specific metal ion with tissue thromboplastin also enables improvement of stability when a thromboplastin reagent is stored in a solution form.

Method for measuring blood coagulation time

Provided is a method of avoiding the influence of a coexisting substance in the measurement of HbA1c % for a whole blood sample by an enzymatic method. Specifically, provided is a method of measuring a ratio of a hemoglobin A1c concentration to a hemoglobin concentration in a sample by an enzymatic method, the method including: a first step of optically measuring the hemoglobin concentration; and a second step of optically measuring the hemoglobin A1c concentration, wherein, when HbA1c % is calculated by dividing the hemoglobin A1c concentration measured in the second step by the hemoglobin concentration measured in the first step, the hemoglobin concentration serving as a denominator, which is measured at a first wavelength, is corrected using a result measured at a second wavelength.

Method for measuring HbA1c

Growing community of inventors

Chuo-ku, Japan

Tomohisa Nishio