METHOD FOR MEASURING CONCENTRATION OF A COMPONENT OF MIXED SOLUTION

摘要

PURPOSE: A compositional concentration measuring method for a mixture is provided to rapidly and accurately detect a concentration measurement value by measuring the compositional concentration of a mixture at the same time by using a calibration regression equation. CONSTITUTION: A compositional concentration measuring method for a mixture comprises the following steps. The Raman spectrum of standard test solution is measured by directing homogeneous light to the standard test solution in which each compositional concentration is measured. One or more wavelength area among N kind components is selected by the Raman spectrum absorbed to the standard test solution. A calibration curve is deducted by measuring the compositional concentration of the standard test solution measured by the compositional concentration and the spectrum of the standard test solution in the wavelength area(S4). A calibration regression equation for producing each compositional concentration of the mixture is deducted by the calibration curve(S5). A Raman spectrum is measured by directing homogeneous light to the mixture. Each compositional concentration of the mixture is produced by substituting the Raman spectrum measured from the mixture to the calibration regression equation(S7).