Information depth

{
  "id": "MLC-T-CHM-005832",
  "term": "Information depth",
  "field": "Chemistry",
  "definition": "The effective thickness of the surface region from which analytical information is obtained in a surface sensitive technique. It is determined by the mean free path of the emitted or scattered particles within the material. For electron-based techniques, the information depth is typically in the nanometer range, making them highly surface sensitive.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1806 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/information-depth/"
}