Sta 449 f1 jupiter

The TG/DTG analyses for the tested materials were performed using a STA 449 Jupiter F1 instrument produced by Netzsch, Selb, Germany. Ten milligrams (10 mg) of the sample was put into an Al₂O₃ crucible and heated between the temperatures of 40 °C and 550 °C with a heating rate of 10 K min⁻¹ in the presence of a helium atmosphere (a flow rate of 40 mL min⁻¹). The initial decomposition temperatures (T_5%), maximum decomposition temperatures (T_max), and mass losses (Δm) at each stage of the decomposition and the residual masses at 550 °C (rm) were determined.

The thermal analysis was used to examine the thermal stability, behavior, and decomposition of the MCF materials before and after LYS adsorption, as well as to determine the presence of protein on the silica surface or in the pores. The thermal experiment was carried out on the apparatus STA 449 Jupiter F1 (Netzsch, Selb, Germany). The samples (~18 mg) in aluminum crucibles were heated in the temperature range 30–950 °C with a heating rate of 10 °C/min under a dynamic atmosphere of synthetic air with a flow rate of 50 mL/min. The sensor thermocouple type S TG-DSC and empty Al₂O₃ crucible as a reference were used. The identification of gas products emitted during decomposition of the studied materials was detected and analyzed by quadrupole mass spectrometer QMS 403C Aëolos (Netzsch, Selb, Germany) and Fourier transform infrared spectroscopy FTIR spectrometer Brucker (Ettlingen, Germany) coupling on-line to STA instrument. The QMS data were collected in the range of 10 to 300 amu. The FTIR spectra in the spectral range 600–4000 cm⁻¹ with 16 scans per spectrum at a resolution 4 cm⁻¹ were recorded.

Thermal analysis of activated carbons was conducted using a STA 449 Jupiter F1 instrument, (Netzsch, Selb, Germany). The measurements in synthetic air atmosphere (50 cm³/min) at a temperature range of 30 to 1200 °C (heating rate 10 °C/min) were carried out. The standard Al₂O₃ crucible and thermocouple of type S as TG-DSC sensor were applied. The gaseous products released during decomposition of samples were analyzed by FTIR spectrometer (Bruker, Ettlingen, Germany) and by quadrupole MS spectrometer QMS 403C Aeölos (Netzsch, Selb, Germany) coupled on-line to STA instrument.