Chemical actinometer

{
  "id": "MLC-T-CHM-001933",
  "term": "Chemical actinometer",
  "field": "Chemistry",
  "definition": "A device or system that measures the intensity of light, particularly in the ultraviolet and visible regions, based on a photochemical reaction with a known quantum yield. The extent of the chemical change, such as the formation or disappearance of a product, is quantified to determine the number of photons absorbed. This method is often used to calibrate light sources or determine reaction quantum yields.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "actinometer"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 193 (https://media.iupac.org/publications/analytical_compendium/)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/chemical-actinometer/"
}