Fourier Transform Infrared Spectroscopy with photoelastic modulator

FTIR spectroscopy is a technique used to simultaneously collect high-spectral-resolution data over a wide spectral range, mostly in the mid and near IR regions. Transitions between the vibrational energy levels of molecules occur in the infrared region of the spectrum, for any substructure that has a permanent dipole moment, yielding unique spectra for every molecule, influenced in part by its local chemical environment. Structural and environmental analysis of complex molecules is then enabled by using characteristic group frequencies and relative intensities of observed spectral features. Because different molecules with their different structures produce different spectra, the spectra can be used to identify and to distinguish between molecules.

• Polymers and plastics
• Biomaterials
• Pharmaceutical industry
• Life sciences
• Forensics
• Environmental