Fourier Transform InfraRed Spectroscopy

June 19, 2025

Recently, atmospheric science experts from across the world congregated at Nainital, Uttarakhand discussed the the importance of Fourier Transform InfraRed (FTIR) spectroscopy-based observations from ecologically sensitive Himalayan regions for studies on the topic.

About Fourier Transform InfraRed Spectroscopy:

  • It is also known as FTIR Analysis or FTIR Spectroscopy.
  • It is a powerful analytical tool for identifying chemical constituents and elucidating compound structures in various real-world samples.
  • It does this by analyzing the vibrational modes of molecular functional groups.
  • The FTIR analysis method uses infrared light to scan test samples and observe chemical properties.
  • It gives information about molecular vibrations, provides identification of functional groups and also identifies chemical components, molecules and molecular segments. 
  • This technique is useful for analyzing the chemical composition of smaller particles, typically 10 -50 microns, as well as larger areas on the surface.

Applications

  • It is an established technique for quality control when evaluating industrially manufactured material.
  • It is used for monitoring air quality, testing water quality, and analyzing soil to address environmental and health concerns caused by increasing pollution levels.
  • It is used to identify organic, polymeric, and, in some cases, inorganic materials.

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