Y. Kurosu et al., INDIRECT TIME-RESOLVED FLUORESCENCE DETECTION OF BOTH NONFLUORESCENT AND FLUORESCENT COMPOUNDS SEPARATED BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY, Journal of chromatography, 787(1-2), 1997, pp. 261-265
Indirect time-resolved fluorescence (ITRF) detection of non-fluorescen
t phenylthiohydantoin (PTH)-Ala and fluorescent dansyl (DNS)-Ala separ
ated by high-performance liquid chromatography (HPLC) was carried out.
Addition of europium (Eu3+) chelates to the eluent makes it possible
to detect both non-fluorescent and fluorescent compounds simultaneousl
y. This is because the fluorescence lifetime of Eu3+ chelates is extre
mely long, whereas that of normal fluorescent compounds is short. The
HPLC conditions with the Eu3+ chelate system were studied. (C) 1997 El
sevier Science B.V.