Table 3.

Gas chromatography–mass spectrometry conditions for VOC analysis

GC
Instrument	7890 (Agilent Technologies, Santa Clara, CA)
Column	SUPELCOWAX 10, 60 m × 0.32 mm, 0.5 μm (Sigma-Aldrich)
Injection method	Split (1:450)
Injection volume	1.0 μL
Carrier gas	Helium
Flow rate	1.0 mL/min
Injector temperature	280 °C
Oven temperature program	60 °C (held 5 min) → 230 °C at 6 °C/min (held 2.67 min)
Transfer line temperature	230 °C
MS
Instrument	Quattro micro (Waters, Milford, MA)
Mode	Selected ion monitoring
Ion source temperature	230 °C
Ionization mode	Electron ionization