loading...| Preferred Name |
Mass_spectrometry |
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| ID |
http://www.semanticweb.org/ontologies/2010/3/Ontology1271664172453.owl#Mass_spectrometry |
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Mass spectrometry is a method of determining the chemical composition of a substance. The atoms or molecules in a substance are ionised by a beam of high-energy electrons. The ions are focussed by electrostatic and magnetic fields to give a spectrum, which can then be analysed. 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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| prefixIRI |
Ontology1271664172453:Mass_spectrometry |
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| prefLabel |
Mass_spectrometry |
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| Synonym |
mass spectrometry Photometry/Spectrum Analyses, Mass Spectrometry, mass MS Spectrum analyses, Mass mass spectrum analyses mass spectrum mass spectrography Mass Spec ANAL MASS SPECTRUM |
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| subClassOf |
http://www.semanticweb.org/ontologies/2010/3/Ontology1271664172453.owl#experiment |