Patent ID: 7974669
Filing Date: 2011-07-05
Classification: G01N

Abstract:
1. A method for measuring a glucose concentration in blood, comprising the steps of: measuring an absorption spectrum that includes a wavenumber range of 1020-1040 cm obtaining a second derivative spectrum by calculating the second derivative of said absorption spectrum for the wavenumber range 1020-1040 cm determining, based on said second derivative spectrum, two peak points to be used as bases for an integration range, said two peak points being two upward peaks that surround a downward peak in the wavenumber range 1020-1040 cm obtaining an integrated value by integrating the absorption intensity in said absorption spectrum using said integration range that corresponds to said determined two peak points; and determining the glucose concentration in blood based on a relationship between pre-obtained integrated values and glucose concentrations, and said integrated value obtained from said absorption spectrum.