Experimental
Instrumentation
All fluorescence spectra and fluorescence intensity measurements
were done with a Shimadzu RF-5301PC spectrofluorometer
equippedwith a xenon discharge lamp and using 1 cm
quartz cell. The instrumental sensitivity was set at 0.5, and the
excitation and emission slits were set to give 5-nm spectral
bandpass. A Shimadzu AAwith graphite furnace (GV-7) was
used for Al3+ determination in milk samples. A Perkin-Elmer
Titan MPS™ 8 position microwave sample preparation system
was employed for microwave-assisted digestion of milk
samples using standard 75 mL digestion vessels. A Corning
model 125 pH meter was used for the pH adjustment