FTIR or Fourier-Transform Infrared Spectroscopy is a measurement technique whereby spectra is collected based on the response from a pulse of electromagnetic radiation. It can be applied to various types of spectroscopy including infrared spectroscopy, nuclear magnetic resonance and electron spin resonance spectroscopy. Fourier transform spectroscopy is more sensitive and has a much shorter sampling time than conventional spectroscopic techniques.

Process Analytical Technology is a system for designing, analyzing and controlling manufacturing processes through timely measurement during processing. With the goal of ensuring final product quality, it analyzes raw and in- process materials.