Composition, element and method using polymeric mordants to increase the intensity of rigid fluorescent dyes.

摘要

Cationic and anionic polymeric mordants are used with rigid phenalenone, benzphenalenone or 4-oxo-4N-benz-[d,e]-anthracene fluorescent dyes or precursors thereof to increase fluorescence intensity. Compositions and analytical elements containing the mordants and dyes or dye precursors are useful in biological studies, such as cell and tissue staining and cell cytometry, and in analytical determinations for various analytes, e.g. living organisms.