ATR
Definition
Attenuated total reflectance, a sampling arrangement using the evanescent field at a reflecting interface.
Related terms
- Fingerprint Region
- A region containing many coupled and skeletal vibrations, commonly below about 1,500 cm⁻¹.
- FTIR
- Fourier-transform infrared spectroscopy, in which an interferogram is transformed to obtain spectral information.
- Group Frequency
- An approximate spectral region associated with a functional-group vibration, subject to chemical and physical effects.
- KBr Pellet
- A transmission preparation using a compatible specimen dispersed in potassium bromide and pressed into a pellet.
- Wavenumber
- Reciprocal wavelength, commonly expressed in cm⁻¹ in infrared spectroscopy.