| 摘要 |
In a colorimetric measurement using a non-linear curve relating an absorbance to a concentration of substance to be measured, the non-linear curve is corrected by measuring an absorbance value y6' of only one of six standard samples of known different concentrations x1, x2 . . . x6 which are used for making the initial non-linear curve, deriving a quotient alpha by dividing the newly measured absorbance value y6' by a previously measured absorbance value y6, deriving corrected absorbance values y1', y2' . . . y5' by producing products alpha y1, alpha y2 . . . alpha y5 of the quotient alpha and previously measured absorbance values y1, y2 . . . y5, and by forming a corrected non-linear curve with the aid of the corrected absorbance values y1', y2' . . . y5' and the newly measured absorbance value y6'.
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