DAS

{
  "id": "MLC-T-CHM-002862",
  "term": "DAS",
  "field": "Chemistry",
  "definition": "An acronym for Decay-Associated Spectra, representing the amplitude spectra corresponding to the pre-exponential factors in a multi-exponential fit of time-resolved spectroscopic data. Each spectrum is associated with a specific decay lifetime component resolved from the kinetic analysis of a photochemical or photophysical process. These spectra are mathematical constructs and do not necessarily represent the true spectra of individual chemical species, especially if intermediates are involved in the decay sequence.",
  "subject": "Organic and Biomolecular Chemistry",
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 320 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/das/"
}