mass spectrometry

mass spectrometry
   An analytical technique for identi- fication of chemical structures, determination of mixtures, and quantitative elemental analysis, based on application of the mass spectrometer. A method of chemical analysis which vaporizes, then ionizes the substance to be analyzed, and then accelerates the ions through a magnetic field to separate the ions by molecular weight. Mass spectrometry can result in the exact identification of an unknown compound, and is a very powerful analytical technique, especially when combined with chromatography.

Forensic science glossary. . 2012.

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