reflection-absorption infrared spectroscopy

synonym: infrared reflection-absorption spectroscopy
acronyms: IRRAS, RAIRS
https://doi.org/10.1351/goldbook.09201
Spectroscopy based on reflection-absorption.
Notes:
  1. RAIRS allows improved discrimination between species at the surface and those in the bulk.
  2. RAIRS is most sensitive at metal surfaces with grazing incidence.
  3. RAIRS is usually employed with the sample in a vacuum or gas.
  4. RAIRS may be employed with polarization modulation to minimize background absorption.
Source:
PAC, 2020, 92, 1781. (Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)) on page 1792 [Terms] [Paper]
Citation: 'reflection-absorption infrared spectroscopy' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.09201 RIS BibTex EndNote
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