PPT Slide
- The first advantage of FTIR is known as the Fellget advantage.
- The Fellgett, or multiplex advantage arises because all of the spectral elements are measured simultaneously. Thus, a spectrum can be obtained very quickly.
- This leads to a spectrum better signal to noise ratio (S/N) in the same time compared to a dispersive instrument.
- Alternatively, it makes FTIR a quicker technique to achieve the same quality spectrum.
- FTIR is better for kinetic work, and where S/N is poor.