Absorption

{
  "id": "MLC-T-CHM-000074",
  "term": "Absorption",
  "field": "Chemistry",
  "definition": "The process by which one substance takes up another substance, either physically or chemically, into its bulk. This differs from adsorption, where molecules adhere to a surface. In analytical chemistry, absorption of electromagnetic radiation is used in techniques like UV-Vis spectroscopy to quantify concentrations of substances.",
  "subject": "Chemistry and the Environment",
  "see_also": [
    "attachment",
    "radiation"
  ],
  "references": [
    "PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2169 (https://doi.org/10.1351/pac199062112167)",
    "PAC, 1982, 54, 1533. 'Glossary of terms used in nuclear analytical chemistry (Provisional)' on page 1534 (https://doi.org/10.1351/pac198254081533)",
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2226 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/absorption/"
}