TG and DTA curves for IVS320 were obtained on a SHIMADZU thermobalance, model
TGA 60 (simultaneous TG/DTA), using an alumina pan (samples weighting 8 ± 0.1 mg) at a heating rate of 10 °C·min
−1 in the 25–900 °C temperature range, under dynamic atmosphere of Air and N
2 at 50 mL·min
−1.
The
TGA 60 equipment was calibrated using In, which was heated up to 200 °C followed by correction of the calibration temperature. Next, another experiment was run with the purpose of checking whether the melting temperature varied within ±0.5 °C.
In order to identify the thermal events presented as well as the temperatures (
Tonset, and
Tpeak) and energies (J·g
−1) involved in these events, thermal curves were analyzed with the aid of the SHIMADZU software TASYS.
Dantas E.D., de Souza F.J., Nogueira W.N., Silva C.C., de Azevedo P.H., Soares Aragão C.F., de Almeida P.D., Cardoso M.F., da Silva F.D., de Azevedo E.P., Guimarães Barbosa E., Lima E.S., Ferreira V.F, & de Lima Á.A. (2017). Characterization and Trypanocidal Activity of a Novel Pyranaphthoquinone. Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry, 22(10), 1631.