Skip to main content


Gas Chromatography/Mass Spectrometry (GC/MS), is a powerful analytical technique used to identify and quantify chemical compounds in complex mixtures. It involves the separation of compounds in a sample by gas chromatography, followed by detection and analysis using mass spectrometry. In gas chromatography, the sample is vaporized and injected into a column where the different components of the sample are separated based on their physical and chemical properties, such as boiling point and polarity. The separated components exit the column and are introduced into the mass spectrometer. In mass spectrometry, the separated compounds are ionized and fragmented into smaller ions, which are then detected and analyzed based on their mass-to-charge ratio. The resulting mass spectrum provides information on the identity and relative abundance of the compounds in the sample.