Vapour phase interference

{
  "id": "MLC-T-CHM-012513",
  "term": "Vapour phase interference",
  "field": "Chemistry",
  "definition": "An atomic spectrometry interference arising when the proportion of analyte that is dissociated, ionized or excited in the gas phase changes. Depending on the process affected it is termed a dissociation, ionization or excitation interference. In an air-acetylene flame, for instance, a high concentration of an easily ionized element such as potassium adds electrons and suppresses ionization of the analyte, which raises the free atom signal.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "dissociation",
    "ionization"
  ],
  "references": [
    "Orange Book, 2nd ed., p. 171 (https://media.iupac.org/publications/analytical_compendium/)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/vapour-phase-interference/"
}