Patent · US Expired

Measuring device for determining the O.sub.2 content of a sample

US4587101A · kind A · utility

88Cited by

4References

15Claims

0Family size

Assignee

AVL AG · CH

Inventors

Hermann Marsoner · St. Johann in Tirol, AT
Herbert Kroneis · Graz, AT

Key dates

Filing date	Nov 18, 1983
Grant date	May 6, 1986
Priority date	—
Expiry date	Nov 18, 2003

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/6428
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a sensor element for determining the O.sub.2 content of a sample, comprising a fluorescent indicator substance which is embedded in a polymer carrier and with which the sample may be brought into contact, a fluorescence extinction sufficiently high for yielding useful measurement results is achieved by the use of plasticizer-compatible polymers as carrier materials which contain plasticizers in addition to the indicator molecules.

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