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.
Patent No.:
Date of Patent:
Jul. 13, 1999
Filed:
Nov. 06, 1997
Applicant:
Inventors:
Robert Kellner, deceased, late of Vienna, AT;
Max Lippitsch, Graz, AT;
Assignee:
Anton Paar GmbH, Graz, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436103 ; 436100 ; 436129 ; 436164 ;
Abstract
In a method for infrared-optical determination of the concentration of at least one chemical analyte in a liquid sample, where the liquid sample is passed through a measuring cell and irradiated with infrared radiation of a single narrow waverange and infrared absorption is measured, the analyte being determined is subject to a chemical reaction before measurement, which should leave the other components of the liquid sample unaffected, and the change in infrared absorption caused by the chemical reaction with the analyte is measured as a unique function of the analyte concentration to be determined.