Determination method utilizing reagents covalently labelled with essentially non-fluorescent lanthanide chelates in combination with time-resolved fluorescence spectroscopy and the reagents to be used in the method

摘要

Compound having the following structure: R is a direct chain or branched alkylene group comprising 2-8 carbon atoms, n and m are 0 or 1, Y is a carboxylic or phosphonic acid, and X is an active functional group which permits covalent coupling to a bio-organic molecule.