2.1. Instrumentation
During the study, to determine the aluminum concentration
in solutions, a Philips PU 9100X model
flame atomic absorption spectrophotometer (FAAS)
interfaced with computer for data collection and aluminum
hallow cathode lamp operated at 5mA was
used with an optimized nitrous oxide-acetylene flame.
Absorbance was measured at 309.1 nm with spectral
band pass 0.5 nm.