Fourier-transform infrared (FTIR)

FT-IR stands for Fourier transform infrared. Once a sample exposed to IR radiation,

some radiation is absorbed by the sample and some passes through (is transmitted).

The IR absorbed and transmitted is a spectrum representing a sample ‘fingerprint’.

A few examples of common materials identified by FT-IR are Cleansers and Detergents,

Paints, Oils, Paper, Gel, Glue, Epoxy, Resin, Fibers (Synthetic and Natural), Plastics, Elastomers (rubber).

FT-IR is a very powerful technique to characterize the chemical composition.

As the FT-IR measurement is non-destructive other analytical technique might be applied afterwards.