Data matrices were collected each 1.7 s using wavelengths from 200
to 500 nm in steps of 0.5 nm for the DAD, and each 1.8 s from 300 to
500 nm in steps of 1 nm for the FLD. In this latter case, the excitation
wavelength was firstly set at 275 nm and, after 2.5 min of run, it was automatically changed through the software to 228 nm. Both LC-DAD and
LC-FLD matrices were saved in ASCII format, and transferred to a PC for
subsequent manipulation