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GAS CHROMATOGRAPHY-MASS SPECTROMETY (GC/MS)
Date:
December 27, 2005 09:09 AM
GAS CHROMATOGRAPHY-MASS SPECTROMETY (GC/MS)This cutting edge technology uses mass spectrometric detection in conjunction with gas chromatography. NOW® Foods mass spectrometer on GC is a highly sensitive ion trap detector (ITD). In this instrument, the eluted sample from GC is first ionized by electron impact or chemical method. Then the trapped ions are precisely ejected into an electron multiplier detector, and reported in mass-to-charge ratio. GC/MS has been used for the identification of compounds in natural and biological systems, such as characterization of unsaturated long-chain omega-3 fatty acids, the odor and flavor components of various products, and identification of pollutants such as pesticides.
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