Advantages of the FT-IR instruments:

A few of the advantages of the FT-IR instruments over the dispersive instruments are as follows:

• It is much faster since the absorption at all wavelengths is recorded at the same time and a given spectrum can be taken in less than a second.
• These provide better frequency resolution and reproducibility.
• The energy result is much greater which leads to a higher S/N ratio.
• FT-IR spectrometers do not required external calibration.
• These have easy mechanical design that makes it more reliable.

  Three clinical/biomedical applications of IR spectrometry are as follows.

• Purpose of the composition of urinary and gall stones
• Diagnosis and identification of cancer cells
• Quantitative determination of serum constituents