Table 1. Operation conditions of GC/MS (Agilent GC with MSD detector) analysis

Instrument	Condition
GC	6890 GC, Agilent
MSD	5975, Agilent
Method
Column	DB-WAX (60 m×0.32 mm i.d.×0.5 μm)
Oven temperature	44°C (5 min), 3°C/min to 170°C (10 min), 3°C/min to 240°C (5 min)
Injector temperature	230°C
Carrier gas	He, mL/min
Split mode	Splitless
Measurement mode	Scan
Mass range	35-350 m/z