“…Studies were performed using an Antaris II IR Fourier spectrometer from Thermo Electron Corporation (Intertek, USA) with an integrating sphere; resolution was 8 cm -1 , the 1 number of scans was 16, the measurement range from was 4000 to 10,000 cm -1 . The standard for constructing baseline plots was Teflon, using 32 scans.…”