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:
Mar. 03, 1998
Filed:
May. 14, 1996
Applicant:
Inventor:
Hellfried Karpf, Graz, AT;
Assignee:
AVL Medical Instruments AG, Schaffhausen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
436 79 ; 436 73 ; 436 74 ; 436164 ; 436172 ; 422 56 ; 422 8205 ; 422 8206 ; 422 8207 ; 422 8208 ; 422 8209 ;
Abstract
An optical indicator for determining the activity of an ion in a sample is provided with an ionophor which is capable of selectively binding the ion to be measured. The ionophor has at least two functional groups that can form an electron donor acceptor (EDA) complex, the complex bond being broken up by the attachment of the ion to be determined. This will lead to a change in at least one of the measurable optical properties of the indicator in dependence on the activity of the ion to be measured.