Rosemary Oil on Rt-βDEXsm

Injection
Column	Rt-βDEXsm, 30 m, 0.32 mm ID, 0.25 µm (cat.# 13104)
Standard/Sample	Rosemary oil
Diluent:	Acetone
Conc.:	5%
Inj. Vol.:	1 µL split (split ratio 100:1)
Liner:	Topaz 4.0 mm ID Precision inlet liner w/ wool (cat.# 23305)
Inj. Temp.:	210 °C
Oven
Oven Temp.:	40 °C (hold 1 min) to 200 °C at 2 °C/min (hold 3 min)
Carrier Gas	H₂, constant pressure
Linear Velocity:	80 cm/sec

Detector	FID @ 230 °C
Constant Column + Constant Make-up:	51.4 mL/min
Make-up Gas Type:	N₂
Data Rate:	50 Hz
Instrument	Agilent 7890A GC
Sample Preparation	Rosemary oil (50 µL) was diluted with acetone (950 µL) in 2 mL, screw-thread vials (cat.# 21143), and capped with short-cap, screw-vial closures (cat.# 24495).

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