Kinds of infrared spectroscopy in which the effect of the sample on the radiation from the source is measured as a whole without exploring the dependence on wavenumber.
Note: These methods are mainly used to obtain adequate
optical throughput for process measurement and monitoring.
Example: Two-dimensional infrared correlation spectroscopy.
Source:
PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 756 (https://doi.org/10.1515/pac-2019-0203)