Aliquots collected at different reaction times were analyzed
simultaneously by the two spectroscopic techniques and the spectra were fused so that they could be analyzed by MCR-ALS,
and the concentration profile and the pure spectra of the initial
azodyes and the products could be obtained. The fusion of the data
from both techniques was expected to improve the information
provided by a single spectroscopic technique, but for a better
illustration of the advantages of this strategy the results of the
MCR-ALS analysis using the individual UV–vis-DAD and 1
H-NMR
data are also included and compared.