Patent · US Expired

Test carrier for the determination of ions

US5211914A · kind A · utility

44Cited by

7References

17Claims

0Family size

Assignee

Boehringer Mannheim GmbH · DE

Inventors

Peter Vogel · Diepersdorf, DE
Detlef Thym · Mannheim, DE
Michael Fritz · Biblis, DE
Dan Mosoiu · Schifferstadt, DE

Key dates

Filing date	May 10, 1991
Grant date	May 18, 1993
Priority date	—
Expiry date	May 10, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S435/805
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention concerns a test carrier for the determination of ions containing a test layer which has a liquid-resistant, organic phase which contains a hydrophobic polymer in a homogeneous mixture with a hydrophobic, organic liquid of low volatility and an ionophore, as well as a substance which changes its colour in the presence of the ion to be determined. The test carrier is characterized in that the test layer contains particles with an oil number of 80-200 and the ionophore is homogeneously dispersed in the hydrophobic, organic phase.

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