Gas Chromatography

Gas chromatography (GC) is an analytical laboratory technique used to separate and identify volatile compounds in cannabis samples, including terpenes and other aromatic molecules. In cannabis research and quality assurance, GC instruments vaporize plant material and pass it through a column, allowing different terpenes to be measured individually and quantitatively. This method is foundational to modern cannabis chemistry, enabling breeders and labs to document terpene profiles with precision. GC results often form the basis for strain descriptions and breeding records, though field conditions and post-harvest handling significantly affect final terpene composition. Understanding GC data helps breeders select parent plants with target aromatic compounds and track consistency across generations.

Breeders use GC data to identify and stabilize desirable terpene profiles across breeding lines. Accurate GC analysis allows selective breeding for specific aromatic compounds while monitoring genetic stability in offspring.