Similarly, these ester bands were observed in the FAME samples.
Moreover, the standard FAME spectra showed the bending vibrations of CH2 and CH3 aliphatic groups are observed in the standard spectra at 1460 cm1 and bands at 1375 and 1236 cm1 region are due to bending vibrations of CH2 groups.
However, broader bending vibration of CH2 and CH3 aliphatic groups were observed in FAME samples.