Table 3. Analytical conditions of GC-NPD

Part	7890B
Column	AGILENT HP-5(0.32 mm × 30 m, 0.25 μm)
Injection volume	2 μL
Carrier gas flow	He, 0.8 mL/min
Injection temp.	250°C
Detector temp.	325°C
Split mode	Split (10 : 1)
Oven temp.	Heating speed (°C/min)	Temp. (°C)	Hold time (min)
	-	180.0	1.00
	15.0	200.0	0.00
	5.0	240.0	0.00
	10.0	280.0	15.00