FTIR
FTIR
Fourier Transform Infrared Spectroscopy (FTIR) (pronounced: F-T-I-R) is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid or gas.
Etymology
The term FTIR is an acronym for Fourier Transform Infrared Spectroscopy. The name is derived from the method of operation of the instrument which uses a mathematical process called a Fourier transform (named after French mathematician Joseph Fourier) to convert raw data into the actual spectrum.
Definition
FTIR is a method of infrared spectroscopy. Infrared spectroscopy is a technique used for structure elucidation, quantifying and detecting molecules in a sample. It works by measuring the absorption of infrared radiation by the sample material versus wavelength.
Related Terms
- Infrared Spectroscopy: The measurement of the wavelength and intensity of the absorption of mid-infrared light by a sample.
- Fourier Transform: A mathematical technique used in FTIR to convert the raw data into the actual spectrum.
- Spectroscopy: The study of the interaction between matter and electromagnetic radiation.
- Absorption Spectrum: A spectrum of electromagnetic radiation transmitted through a substance, showing dark lines or bands due to absorption of specific wavelengths.
Applications
FTIR is used in various fields such as pharmaceuticals, forensics, and geology. It is also used in the analysis of a wide range of materials such as polymers, ceramics, glass, etc.
See Also
External links
- Medical encyclopedia article on FTIR
- Wikipedia's article - FTIR
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