The Concept Of FTIR Fourier-transform Infrared Spectroscopy | spectroscopy for biologists-8

Spectroscopy, FTIR (Fourier Transform Infrared Spectroscopy), Infrared light, Non-dispersive IR Rays, Dispersive IR spectroscopy, Monochromator, Interferometer, Fourier Transform, Frequency domain, Time domain, Constructive interference, Destructive interference, Interferogram, Wavenumber, Infrared spectrum, Molecular composition, FTIR instrumentation, Beam splitter, Fixed and movable mirrors, Detector, Infrared radiation, Optical path difference, Vibrational frequencies, Absorption patterns, Sample analysis, Composition analysis.

In this video, the topic covered is "FTIR" or Fourier Transform Infrared Spectroscopy, which is a powerful technique used for analyzing the molecular composition of samples. The video breaks down the concept of FTIR into simple terms and highlights its advantages over dispersive IR spectroscopy. It explains the key components of FTIR instrumentation, including the interferometer, beam splitter, fixed and movable mirrors, and the detector. The process of obtaining interferograms and converting them from the time domain to the frequency domain using Fourier Transform is elucidated. The resulting spectrum provides valuable insights into the types of molecules present in the sample, offering a detailed analysis of its composition.


this video contains:
0:00 Introduction and FTIR definition
0:30 Dispersive vs Non-Dispersive IR
2:19 Fourier Transformation
3:18 FTIR instrumentation
3:58 Constructive Vs Destructive Interference
5:17 interferogram


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