total and metal ion-binding groups occurred on the biosorbent
surface [27]. Evaluation of the adsorptive properties of
biological materials, including algae, with FTIR spectra was
investigated in a number of reports. Many studies focused
on applicability of seaweeds to aqueous media treatment by
removing heavy metal ions, such as Pb(II), Cd(II), Ni(II),
U(VI), and Th(IV) [28–30]. There are also some works, in
which algal biomass is subjected to interactions with cations
of nutritional value [24, 31]. However, no literature data
was found to provide information on usability of Fourier
transform infrared spectroscopy in evaluation of enrichment
Spirulina species with microelements.