the fluorescence excitation and emission spectra observed in plasma from patients with chronic renal failure were reproduced by the generation of soluble lipofuscins in normal plasma samples by incubation with mixtures of l-dopa , dopamine , l-norepinephrine , l-epinephrine , 3-hydroxy-dl-kynurenine and 3-hydroxy-anthranilic acid for 24 h at 37 degrees c .
C0028351
l-norepinephrine
C0014563
epinephrine