Method of determining an alkali ion
US6124135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | May 27, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N31/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.