Electron ionization

{
  "id": "MLC-T-CHM-003727",
  "term": "Electron ionization",
  "field": "Chemistry",
  "definition": "A method used in mass spectrometry to produce gas-phase ions by bombarding gaseous atoms or molecules with a beam of high-energy electrons. The collision removes an electron from the neutral species, creating a positive ion. This technique is widely used for analyzing volatile and thermally stable compounds.",
  "synonyms": [
    "electron impact ionization",
    "electron impact"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "ionization",
    "photoionization",
    "radical ion"
  ],
  "references": [
    "PAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1547 (https://doi.org/10.1351/pac199163101541)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/electron-ionization/"
}