Table 2.
Key properties of GC-FID method for analysing cannabinoids with a capillary column in four different studies
| Capillary column properties | Cannabinoids analysed | Oven process | Carrier gas | References |
|---|---|---|---|---|
| DB5 capillary column | THCA, CBGA, CBCA, THC, CBG, CBC |
Initial 60 °C, 3 °C/min, up to 240 °C Hold for 5 min |
Nitrogen | (Romano and Hazekamp 2013) |
| Silica capillary column coated with DB1 | Δ9-THC, CBD, CBN, CBG, THCA, CBGA, CBDA |
Initial 100 °C, 108 °C/min, up to 280 °C Hold for 30 min |
Nitrogen | (Hazekamp et al. 2009) |
| DB5 5% diphenyl/95% dimethylpolysiloxane capillary column | THC-THCA |
Initial 200 °C, 10 °C/min, up to 300 °C Hold for 2 min |
Helium | (Casiraghi et al. 2018) |
| Cross-linked poly-5% diphenyl-95% dimethyl polysiloxane capillary column | CBDA-CBD |
Initial 45 °C, 2 °C/min, up to 100 °C then 5 °C/min, up to 250 °C. Hold for 5 min |
Helium | (Pellati et al. 2018) |