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:
Sep. 26, 2000
Filed:
May. 27, 1998
Applicant:
Inventors:
Assignee:
AVL Medical Instruments, Schaffhausen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436 79 ; 436 73 ; 436 74 ; 436172 ; 422 8206 ;
Abstract
The invention relates to a method of determining an alkali ion in a sample, wherein the alkali ion is contacted with a compound having a luminophoric moiety and an ionophoric moiety, which ionophoric moiety reacts with the alkali ion present in the sample, wherein the luminophoric moiety changes its luminescence properties, after which the luminescence is measured and the alkali ion determined utilizing the test reading, which method is characterized in that the compound utilized is a diaza-cryptand of the general Formula I: ##STR1## in which X is the luminophoric moiety, m is the number 0, 1 or 2, and o and p independently mean the numbers 0, 1 or 2.