Definitions for tandem mass spectrometry

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  1. Tandem mass spectrometry

    Tandem mass spectrometry, also known as MS/MS or MS², involves multiple steps of mass spectrometry selection, with some form of fragmentation occurring in between the stages.

U.S. National Library of Medicine

  1. Tandem Mass Spectrometry

    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.

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