Fourier Transform Infrared Spectroscopy (FTIR) is an advanced technique used to identify and quantify organic and inorganic compounds by measuring their infrared absorption. The FTIR spectrometer analyzes molecular vibrations when the sample is exposed to infrared light, providing detailed insights into the molecular structure and functional groups of a material. FTIR is widely used in material science, pharmaceuticals, and environmental testing to identify contaminants, characterize materials, and verify product compositions. Its ability to detect a wide range of functional groups makes it an invaluable tool in many industries.