Patent ID: 7961324
Filing Date: 2011-06-14
Classification: G01N,Y10T

Abstract:
1. An analyzer that analyzes a sample based on optical characteristics of the sample, comprising: a measuring unit that measures absorbances of two or more wavelength identifying samples having different concentrations and having absorbance characteristics in which there is no extremum in a wavelength band including a wavelength to be identified, the wavelength identifying samples being made of a same material; a calculator that obtains a gradient of a straight line indicating a relationship between the concentrations and the absorbances of the identifying samples measured by the measuring unit; and an identifier that identifies an actual wavelength of light to be measured by the measuring unit, based on a degree of coincidence between the gradient of the straight line calculated by the calculator and at least one pre-obtained reference gradient of a straight line indicating a relationship between concentrations and absorbances of reference samples made of the same material as the wavelength identifying samples for at least one wavelength, wherein the same material has an absorbance characteristic with a sufficiently large derivative in the wavelength band so as to accurately identify the actual wavelength of light to within 1 nm or less.