NALT

Termo preferencial

tandem mass spectrometry

Topic

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.

mass spectrometry

mass spectrometry-mass spectrometry
MS/MS (mass spectrometry-mass spectrometry)

Field 001 in MARC Authority Format

74027

espanhol

espectrometría de masas en tándem

URI

https://lod.nal.usda.gov/nalt/220043

Baixar este conceito

Criado 6/26/14, última modificação 2/1/19