No bands at 820 and 1380 cm -1 , which indicate synthesis impurities of NO3 -, were detected, and these are generally eliminated at 600 °C . It is also important to highlight that no peaks at 548 and 592 cm -1 and no similar intensity in peaks at 565 and 606 cm -1 were observed, which are characteristic of β-TCP (beta-tricalcium phosphate) . indicating the presence of artemisinin in the structure. Additionally, the band amplification is a sign of less crystallinity and greater intensity in the regions 1427 -1475 cm -1 and 1647 cm -1 , with the intensity proportional to the union's strength . Furthermore, the peaks at 2929 cm -1 and 1647 cm-1, which correspond to CH and C=O stretching mode, also intensify in artemisinin. These groups are present in