Difference spectroscopy

{
  "id": "MLC-T-CHM-003163",
  "term": "Difference spectroscopy",
  "field": "Chemistry",
  "definition": "A general spectroscopic method where the spectrum of one sample is subtracted from the spectrum of another, or a spectrum recorded under one set of conditions is subtracted from one recorded under different conditions. This highlights spectral features that change due to a specific perturbation or difference between the samples. It is widely applied in UV-Vis, IR, and NMR spectroscopy.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "spectral subtraction"
  ],
  "references": [
    "PAC, 2021, 93, 647. 'Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)' on page 655 (https://doi.org/10.1515/pac-2019-0203)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/difference-spectroscopy/"
}