Patent ID: 7321829

Claim:
A method for the identification and/or the quantification of a target compound obtained from a sample, comprising the steps of: putting into contact the target compound with a capture molecule in order to allow a specific binding between said target compound with said capture molecule, said capture molecule being fixed upon a surface of a solid support according to an array comprising discrete regions with a density of at least 20 of said discrete regions per cm 2 , each of said discrete regions being fixed with one species of capture molecules; performing a catalytic reduction of a metal present in solution leading to formation of a metallic precipitate in one or more of said discrete regions; determining the possible presence and quantification of precipitate(s) in said discrete region(s); and correlating the presence and quantification of the precipitate(s) at the discrete region(s) with the identification and/or a quantification of said target compound.