PID Analyzers' Technical Program SUNDAY at Pittcon 2020
SUNDAY AFTERNOON AT PITTCON 2020: Analysis of Medical Cannabis Terpenes by GC-PID Room: Room W176A Session Number: 5-3-3 Sunday, March 01, 2020: 2:10 PM - 2:30 PM Authors: Driscoll, Maclachlan (presenting) Description With recent changes and liberalization in the law, cannabis is now a rapidly growing industry and lab testing is required for medicinal and recreational cannabis as well as residual cannabis solvents. There are a few gas chromatography (GC) detectors presently used for this analysis but each has its challenges. The Flame ionization detector (FID) requires hydrogen support gas and can have problems with flameout during injections. The GC Mass Spectrometer (GCMS) detector is not very useful for analysis of residual solvents or terpenes since more than a dozen of the important terpenes have an m/e of 136 with different secondary ions. Alpha and beta-pinene have similar parent ions but slightly different secondary ions. The Photoionization D