Thermal ionization

{
  "id": "MLC-T-CHM-011946",
  "term": "Thermal ionization",
  "field": "Chemistry",
  "definition": "The formation of ions from a solid sample by heating it to a high temperature on a metal surface. The sample is vaporized and ionized through contact with the hot filament, which has a high work function. This technique is frequently used as an ion source in mass spectrometry, particularly for isotopic analysis of elements that form positive ions at high temperatures.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "Orange Book, 2nd ed., p. 203 (https://media.iupac.org/publications/analytical_compendium/)",
    "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 1548 (https://doi.org/10.1351/pac199163101541)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/thermal-ionization/"
}