Patent · US Active

Method for determining parameters of a gas-selective electrode

US7799202B2 · kind B2 · utility

0Cited by

9References

11Claims

0Family size

Assignee

HACH LANGE GMBH · DE

Inventors

Manfred Battefeld · Goldkronach, DE
Klaus Bittner · Frankfurt am Main, DE
Andreas Golitz · Moers, DE
Markus Hahn · Kempen, DE
Michael Kussmann · Goldkronach, DE
Aurelia Stellmach-Hanulok · Wülfrath, DE

Key dates

Filing date	Aug 2, 2005
Grant date	Sep 21, 2010
Priority date	—
Expiry date	Jul 22, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/4163
WIPO fieldMeasurement
WIPO sectorInstruments

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 UN at the electrode is determined during the rinsing. Using the zero point voltage UN, 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.