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:
Sep. 21, 2010
Filed:
Aug. 02, 2005
Manfred Battefeld, Duesseldorf, DE;
Klaus Bittner, Krefeld, DE;
Andreas Golitz, Moers, DE;
Markus Hahn, Kempen, DE;
Michael Kussmann, Duesseldorf, DE;
Aurelia Stellmach-hanulok, Wuelfrath, DE;
Manfred Battefeld, Duesseldorf, DE;
Klaus Bittner, Krefeld, DE;
Andreas Golitz, Moers, DE;
Markus Hahn, Kempen, DE;
Michael Kussmann, Duesseldorf, DE;
Aurelia Stellmach-Hanulok, Wuelfrath, DE;
Hach Lange GmbH, Berlin, DE;
Abstract
Gas-selective electrodes in liquid analyzing devices have a characteristic curve K with a linear portion L and a non-linear portion NL. In the non-linear portion NL, the characteristic previously could only be estimated so that determinations of the concentration were rather inexact. According to the present application, the electrode is rinsed with an acid and the zero point voltage Uat the electrode is determined during the rinsing. Using the zero point voltage U, the non-linear portion NL of the characteristic K is determined with high precision so that even low concentrations c can be determined with great accuracy.