Measurement method of
vibrational spectroscopy based on
internal reflection from an absorbing material at angles of incidence at or above the critical angle (
attenuated total reflection).
Note:
Attenuated total reflection occurs where the material absorbs. The resulting spectrum resembles an absorption spectrum of the sample.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 739 (https://doi.org/10.1515/pac-2019-0203)