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DeCS
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Descritor Inglês:
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Tandem Mass Spectrometry
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Descritor Espanhol:
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Espectrometría de Masas en Tándem
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Descritor Português:
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Espectrometria de Massas em Tandem
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Sinônimos Inglês:
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Mass Spectrometry Mass Spectrometry
Mass Spectrometry, Tandem
Mass Spectrometry-Mass Spectrometry
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Categoria:
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E05.196.566.880
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Definição Inglês:
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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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Nota Histórica Inglês:
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2007
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Qualificadores Permitidos Inglês:
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Número do Registro:
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52433
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Identificador Único:
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D053719
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Ocorrência na BVS:
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Similar:
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DeCS
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