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DeCS
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Descriptor English:
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Spectrometry, Mass, Electrospray Ionization
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Descriptor Spanish:
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Espectrometría de Masa por Ionización de Electrospray
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Descriptor Portuguese:
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Espectrometria de Massas por Ionização por Electrospray
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Synonyms English:
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ESI Mass Spectrometry
Electrospray Ionization Mass Spectrometry
Mass Spectrometry, ESI
Spectrometry, ESI Mass
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Tree Number:
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E05.196.566.600
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Definition English:
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A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry. |
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History Note English:
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2001
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Allowable Qualifiers English:
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Record Number:
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35400
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Unique Identifier:
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D021241
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Occurrence in VHL:
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Similar:
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DeCS
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