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Like liquid chromatography–mass spectrometry, it allows analysis and detection even of tiny amounts of a substance. [2] GC–MS has been regarded as a "gold standard" for forensic substance identification because it is used to perform a 100% specific test, which positively identifies the presence of a particular substance. A nonspecific test ...
Pyrolysis GC/MS chromatogram of mahogany wood analyzed with OpenChrom. Pyrolysis–gas chromatography–mass spectrometry is a method of chemical analysis in which the sample is heated to decomposition to produce smaller molecules that are separated by gas chromatography and detected using mass spectrometry. [1] [2]
A list of chemical analysis methods with acronyms. A. Atomic absorption ... Gas chromatography-mass spectrometry (GC-MS) Gas chromatography-IR spectroscopy (GC-IR)
Gas chromatography (GC) performs the same function as liquid chromatography, but it is used for volatile mixtures. In forensic chemistry, the most common GC instruments use mass spectrometry as their detector. [1] GC-MS can be used in investigations of arson, poisoning, and explosions to determine exactly what was used.
Similarly to gas chromatography MS (GC-MS), liquid chromatography-mass spectrometry (LC/MS or LC-MS) separates compounds chromatographically before they are introduced to the ion source and mass spectrometer. It differs from GC-MS in that the mobile phase is liquid, usually a mixture of water and organic solvents, instead of gas.
In chromatography and mass spectrometry this year, it was highlighted by the launch of our Thermo Scientific Stellar mass spectrometer, which complements our award-winning Thermo Scientific ...