| 摘要 |
PROBLEM TO BE SOLVED: To discriminate/determine quantitatively micro amounts of various dissolved components in an aqueous solution without using a near infrared spectroscopy. SOLUTION: An analytical curve for indicating a correlation between an absorption intensity in one or more of wavelength in a long wavelength side containing no absorption peak of a dissolved substance itself, in an absorption peak in the vicinity of 160nm of water, and a concentration is preliminarily determined in the first measuring method. Then, an ultraviolet spectroscopic spectrum of the aqueous solution is measured by the one or more of wavelength. The concentration of the micro amount of component in the aqueous solution is determined quantitatively using the analytical curve on the basis of an obtained ultraviolet spectroscopic spectral data. An ultraviolet spectroscopic spectrum as to each of a plurality of standard aqueous solutions is measured preliminarily in a prescribed wavelength range in the absorption peak in the vicinity of 160nm of the water, in the second measuring method. Then, an ultraviolet spectroscopic spectrum of an aqueous sample solution containing the micro amount of component is measured in the prescribed wavelength range, to judge that the ultraviolet spectroscopic spectrum of the aqueous sample solution is consistent with the ultraviolet spectroscopic spectrum in any of the standard aqueous solutions. COPYRIGHT: (C)2005,JPO&NCIPI
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