Patent · US Expired

Method of and an apparatus for measuring ion concentrations in solutions

US4490678A · kind A · utility

161Cited by

3References

17Claims

0Family size

Assignee

Licentia Patent-Verwaltungs-GmbH · DE

Inventors

Max Kuisl · Ulm, DE
Manfred Klein · Highland Park, US

Key dates

Filing date	May 13, 1982
Grant date	Dec 25, 1984
Priority date	—
Expiry date	May 13, 2002

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/4148
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of measuring ion concentrations in solutions comprises using at least two ion sensitive test electrodes in the solution to be measured, the test electrodes having different sensitivities only in respect of the ion or ion mixture to be measured, setting the operating point of the test electrodes by means of at least one common reference electrode, and evaluating the signals of the test electrodes to produce a measurement result essentially independent of the properties of the reference and test electrodes which would interfere with accurate measurement. The invention also includes apparatus suitable for carrying out the method.

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