The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 06, 1986

Filed:

Dec. 20, 1982
Applicant:
Inventor:

Taiichi Banno, Hachioji, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
364571 ; 364497 ; 364573 ;
Abstract

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 y.sub.6 ' of only one of six standard samples of known different concentrations x.sub.1, x.sub.2 . . . x.sub.6 which are used for making the initial non-linear curve, deriving a quotient .alpha. by dividing the newly measured absorbance value y.sub.6 ' by a previously measured absorbance value y.sub.6, deriving corrected absorbance values y.sub.1 ', y.sub.2 ' . . . y.sub.5 ' by producing products .alpha.y.sub.1, .alpha.y.sub.2 . . . .alpha.y.sub.5 of the quotient .alpha. and previously measured absorbance values y.sub.1, y.sub.2 . . . y.sub.5, and by forming a corrected non-linear curve with the aid of the corrected absorbance values y.sub.1 ', y.sub.2 ' . . . y.sub.5 ' and the newly measured absorbance value y.sub.6 '.


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