3.3. Elution time-FLD matrices
TBZ, FBZ, CBZ, CBL and NAP were determined through their fluorescent signals. It should be noticed that the first three analytes are not interfered by the injection bands in the FLD mode. Fig. 4A shows the
experimental FLD chromatograms and the emission spectra of these
compounds. As can be seen, two clear regions are distinguished in the
time axis: one of them around 2 min (including TBZ, FBZ, and CBZ)
and the other one between 3 and 4 min (including CBL and NAP).