FT-IR Spectrometer Uses an interferometer Has better sensitivity Less energy is needed from source Completes a scan in 1-2 seconds Takes several scans and averages them Has a laser beam that keeps the instrument accurately calibrated Chapter 12 13Chapter 12 13 FT-IR Spectrometer • Uses an interferometer. • Has better sensitivity. • Less energy is needed from source. • Completes a scan in 1-2 seconds. • Takes several scans and averages them. • Has a laser beam that keeps the instrument accurately calibrated. =>