Tandem mass spectrometry

{
  "id": "MLC-T-AGR-006255",
  "term": "Tandem mass spectrometry",
  "field": "Agriculture and food",
  "definition": "A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, gas chromatography-mass spectrometry is involved in separating relatively small compounds by gas chromatography prior to injecting them into an ionization chamber for the mass selection.",
  "synonyms": [
    "MS/MS (mass spectrometry-mass spectrometry)",
    "mass spectrometry-mass spectrometry"
  ],
  "subject": "Fields of Study",
  "see_also": [
    "mass spectrometry"
  ],
  "references": [
    "Medical Subject Headings 2014",
    "NAL Agricultural Thesaurus and Glossary"
  ],
  "translations": {
    "es": "espectrometría de masas en tándem"
  },
  "url": "https://mlchart.com/terminology/agriculture/tandem-mass-spectrometry/"
}