Liquid Chromatography

Liquid chromatography (LC) refers to a family of analytical techniques used to separate and identify cannabinoid and terpene compounds in cannabis plant material. In breeding and testing contexts, LC methods—particularly high-performance liquid chromatography (HPLC)—allow researchers to quantify individual cannabinoids without requiring heat, preserving the distinction between acidic precursors (THCA, CBDA) and their decarboxylated forms (THC, CBD). This separation capability has become foundational to modern cannabinoid profiling, enabling breeders to select parent plants with specific cannabinoid ratios and terpene compositions. LC data is often paired with mass spectrometry (LC-MS) for more detailed compound identification, supporting both breeding decisions and regulatory compliance testing.

Breeders rely on LC profiling to phenotype plants for cannabinoid content and stability across generations. By identifying exact cannabinoid and terpene signatures early in selection, breeding programs can accelerate stabilization of target chemotypes without relying solely on subjective observation or imprecise testing methods.