FT-IR, or Fourier Transform InfraRed, is the preferred method of infrared spectroscopy, where IR radiation is passed through a sample, with some radiation absorbed and some transmitted. This process creates a unique molecular fingerprint, as no two molecular structures produce the same infrared spectrum, making it invaluable for various analyses.
IR spectroscopy is a widely used analytical tool for examining materials at the molecular scale. During an FTIR measurement, a specific vibrational spectrum with characteristic absorption bands in the IR range is obtained. This enables the identification and quantification of different species within the sample.