GC-MS Webinar

Gas Chromatography-Mass Spectrometry (GC-MS) is an analytical technique which allows for the identification of specific molecules by combining the features of gas chromatography to separate chemical mixtures and mass spectrometry to identify the components. This enables the separation of complex matrixes to identify trace differences and potential compounds of interest. GC-MS analyses can be performed on liquids, gases or solids to detect volatile or semi-volatile species. The most common detection analysis is by the direct injection of a liquid or gas. However, EAG is equipped with techniques which allow for solids to be analyzed by either solvent extraction, outgassing (thermal desorption) or pyrolysis. Many other sample preparation and sampling methods can be utilized, such as: derivatization, static headspace, purge & trap, and solid phase microextraction (SPME) which can be applied based on the sample type and species of interest.