NANOPARTICLES OF AN AUTHENTICATION SYSTEM

摘要

The invention relates to nanoparticles of an authentication system for tagging and for detecting the tag in petroleum distillates and crude oils, with a substance which fluoresces outside its natural frequency, more particularly in engine oils and lubricants. Included are equivalent, natural and synthetic products. Dispersed in the nanoparticles are thermostable and photostable, fluorescent colour pigments comprising at least one organometallic complex based on transition metals of the platinum group, including the water-soluble salts thereof. The colour pigments are more particularly ruthenium complexes.