Cannabis Potency by GC-FID with Carrier Gas Comparison (Helium, Hydrogen, Nitrogen)

Cannabis potency can be determined using a number of analytical techniques. In this application note we will describe a method using Gas Chromatography with a Flame Ionisation Detector (GC-FID). SCION also has application notes discussing other techniques such as HPLC (AN145) and GC-MS (AN142), these can be found on our website. Helium has been the standard carrier gas for GC applications however, due to recent global shortages many companies are keen to find alternatives.[3] This application note will give a comparison between different carrier gases showing the variation in results between the two alternatives to Helium; Hydrogen and Nitrogen.