Chromoionophore and method of determining potassium ions

Details Chromoionophore and method of determining potassium ions Chromoionophore and method of determining potassium ions

2011-06-14

2011-06-14

Wilson, James O (Department: 1624)

Chemistry: analytical and immunological testing

Optical result

Including reagent preparation

C540S470000, C540S471000

Reexamination Certificate

active

07960181

ABSTRACT:
The invention relates to methods of determining potassium ions in a sample, wherein the ions are contacted with a compound having chromophoric moiety and an ionophoric moiety, where the ionophoric moiety interacts with the potassium ions present in the sample, resulting in the chromophoric moiety changing its radiation absorption properties in the ultraviolet and visible regions of the spectrum. For example, a change in an intensity of an absorption maximum is measured and the ion concentration is determined accordingly.

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