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Investigative Techniques > Chemistry Techniques, Analytical > Mass Spectrometry > Tandem Mass Spectrometry

Preferred term

Tandem Mass Spectrometry  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • Mass Spectrometry Mass Spectrometry
  • Mass Spectrometry-Mass Spectrometry

Scope note

  • 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.

History note

  • 2007

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URI

http://www.yso.fi/onto/mesh/D053719

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