Cadmium measurement
The collected samples from different experiments were filtered
with filter paper (47 lm) and Cd2+ concentration was measured
by an Atomic Absorption Spectrometer . The analyses were carried out at the wavelengths
of 228.8 nm.
Characterization of biomass
Fourier-transform infrared analysis (FTIR)
Dry U. lactuca samples (before and after cadmium biosorption)
were examined with a Model Tensor – 27. Bruker FTIR
within the wave number 200–5000 cm1 under ambient conditions.
This technique was used to elucidate the chemical characteristics
relevant to metallic ion sorption by the algal
biomass