FTIR Spectroscopy, or Fourier Transform Infrared Spectroscopy, is an analytical technique used to identify and characterize materials based on their molecular vibrations. It works by passing infrared light through a sample, which absorbs specific wavelengths corresponding to the bonds within the molecules. The resulting spectrum provides a unique fingerprint of the material, allowing scientists to determine its composition. This method is widely used in various fields, including chemistry, biology, and materials science, for applications such as quality control, environmental monitoring, and forensic analysis. FTIR is valued for its speed, sensitivity, and ability to analyze solid, liquid, and gas samples.