Gas Chromatography Terpenes

Gas chromatography (GC) refers to the analytical laboratory technique used to identify and quantify volatile terpenes in cannabis plant material. Rather than a botanical family or strain lineage, GC represents a standardized measurement methodology that breeders and researchers employ to document the aromatic compound profiles across different cultivars. By separating terpenes through temperature-based vaporization and detection, GC analysis provides precise data on which monoterpenes (limonene, myrcene, pinene) and sesquiterpenes (caryophyllene, humulene) are present and in what concentrations. This objective chemical profiling has become foundational to modern cannabis genetics work, allowing breeders to track aromatic consistency across generations and customers to understand the chemical basis of strain identity.

Breeders increasingly use GC analysis data to stabilize and select for specific terpene ratios in their lines, treating chemical profiles as heritable traits subject to selective breeding. GC results also help distinguish between phenotypes that may appear visually similar but possess distinctly different volatile profiles.