Gas Chromatography Gc Ms

Gas chromatography-mass spectrometry (GC-MS) is an analytical laboratory technique used to identify and quantify cannabinoids, terpenes, and volatile compounds in cannabis samples. The method separates chemical components through heating and gas flow, then uses mass spectrometry to detect individual molecules by their mass-to-charge ratio. GC-MS is considered a reference standard in cannabis testing because it provides precise compound identification and concentration data. However, the high heat required in GC analysis can cause thermal degradation of some volatile terpenes and cannabinoids, potentially altering results compared to room-temperature methods. Breeders and researchers rely on GC-MS data to document strain composition, though results must be interpreted with awareness of the technique's heating limitations.

Breeders use GC-MS data to establish cannabinoid and terpene profiles for strain documentation and consistency verification across generations. Comparative GC-MS analysis helps identify genetic markers and guide selection for desired chemical phenotypes, though breeders should cross-reference with non-thermal analytical methods for complete chemical characterization.