Functional groups associated with hydroxyapatite were
identified by FTIR spectroscopy. The FTIR spectra of the
prepared samples are given in Figure 3. The ion
stretching vibration around 3568 cm
-1
confirms the
presence of a hydroxyl group. Likewise, the other
stretching vibrations for carbonyl and phosphate groups
were also observed as reported earlier (Cengiz et al.,
2008). The observed functional groups and their
corresponding assignments are presented in Table 1.