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FTIR (Fourier Transform Infrared Spectroscopy)

  • Fourier Transform Infrared Spectroscopy (FTIR) is commonly used to extract specific information about chemical bonding and molecular structures. It is particularly powerful tool for analyzing organic materials.
  • An infrared spectrum represents a fingerprint of a sample with absorption peaks that correspond to the frequencies of vibrations between the bonds of the atoms making up the material. Because each different material is a unique combination of atoms, no two compound produce the exact same Infrared spectrum.

Strengths Limitations

- Extracting information about chemical bonding and molecular structures
- Non-destructive analysis
- Ambient conditions (vacuum not needed)

- Relatively poor surface sensitivity with a large sampling depth (>100nm)
- Quantification can be complicated

More information: http://en.wikipedia.org/wiki/FTIR