Differential spectrum

{
  "id": "MLC-T-CHM-003174",
  "term": "Differential spectrum",
  "field": "Chemistry",
  "definition": "A spectrum obtained by mathematically differentiating a direct spectrum with respect to a variable such as energy or wavelength. This process transforms peaks into bipolar features and can highlight subtle spectral details, resolve overlapping peaks, and remove broad background signals. In Auger electron spectroscopy, spectra are conventionally displayed in the differential mode, dN(E)/dE, where N(E) is the number of electrons at a given kinetic energy E.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "Auger spectroscopy",
    "direct spectrum"
  ],
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1823 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/differential-spectrum/"
}