Abstract: | A microfluorometric system allowing the mesurements of fluorescence decay (i.e. fluorescence lifetime) has been built. It will complete the microspectrofluorometric studies of absorbed compounds-polycyclic aromatic hydrocarbons, metabolites of benzo (a) pyrene-by single living cells and allows a better understanding of the intake and metabolisation of these compounds. The preliminary results with benzo (a) pyrene, dibenzocarbazole, pyrene are shown. |