The use of FTIR spectroscopy in pharmaceutical industry is
gaining much popularity as a quantitative tool due to its rapid
and non-destructive nature, simple sample preparation, ease of
use and less or no solvent consumption for monitoring quality
[31–35] as well as quantity of the raw materials and finished drug
products [36–39]. FTIR spectroscopy has been also a top choice for
minimizing the environmental issues regarding industrial chemical
waste as it does not require much solvent. The structure of
paracetamol contains different functional groups including –N–H,
O–H, C@O and aromatic ring containing C@C. The band appearing
for C@O was selected for quantification as the interference arising
from excipients in pharmaceutical formulation is minimal in the
region