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US 5,641,684 AGranted
Ion-sensitive dyes
AssigneeJohnson & Johnson Clinical Diagnostics, Inc.
InventorsChristopher P. Moore, Angela King, Ian O. Sutherland
Life of this patent
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Abstract
The abstract isn’t available for this document.
Claims9
A compound represented by the formula ##STR6## wherein Y is --(CH.sub.2).sub.2 [O(CH.sub.2).sub.2 ].sub.n -- in which n is an integer from 1 to 6;
- Z is --N.dbd.N--Ar in which Ar is a substituted or unsubstituted aryl group;
- Q is hydrogen or an alkyl group having from 1 to 4 carbon atoms;
- each R independently is hydrogen or a substituent free of acidic protons;
- and,
- X is R or Z.
2 more elements
A method for the determination of a cation in solution comprising contacting a sample of the solution with a sensor member containing an ion-sensitive compound to form a complex of the cation with the compound and determining the detectable change resulting from the formation of the complex.
Dependencies are inferred from the claim text.