FTIR spectrometers, or Fourier Transform Infrared spectrometers, are analytical instruments used to identify and quantify materials based on their infrared absorption characteristics. They work by passing infrared light through a sample and measuring the wavelengths that are absorbed, which provides a unique spectral fingerprint for different substances. These spectrometers are widely used in various fields, including chemistry, biology, and materials science, for applications such as quality control, environmental monitoring, and research. The data obtained can help scientists understand molecular structures and interactions, making FTIR a valuable tool in both academic and industrial settings.