Table 2.

Operation parameters for Allium hookeri extract.

Items	Gas chromatography
Column	DB-1 capillary column (0.32 mm I.D X 30 m, 0.25 μm, dimethylpolysiloxane, Agilent Tech, CA, USA)
Carrier gas	Nitrogen
Flow gas	1.0 mL/min
Injector Temp.	250 °C
Detector temp.	300 °C
Oven temp.	60 °C (4 min) → (8 °C/min) → 120 °C (3 min)
Split ratio	25:1
Injection volume	1 μL