(±)-Menthone on Rt-βDEXm

	Peaks	t_R (min)
1.	(-)-Menthone	22.849
2.	(+)-Menthone	23.437

Injection
Column	Rt-βDEXm, 30 m, 0.32 mm ID, 0.25 µm (cat.# 13101)
Standard/Sample	(±)-Menthone
Diluent:	Acetone
Conc.:	920 µg/mL
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 230 °C at 2 °C/min (hold 3 min)
Carrier Gas	H₂, constant flow
Linear Velocity:	80 cm/sec @ 40 °C

Detector	FID @ 230 °C
Constant Column + Constant Make-up:	51.4 mL/min
Make-up Gas Type:	N₂
Hydrogen flow:	40 mL/min
Air flow:	400 mL/min
Data Rate:	50 Hz
Instrument	Agilent 7890A GC
Sample Preparation	(±)-Menthone (neat) was dissolved in acetone to a final concentration of 920 ppm in 2 mL, screw-thread vials (cat.# 21143), and capped with short-cap, screw-vial closures (cat.# 24495).
Notes	Enantiomeric resolution of (±)-menthone was 4.1.

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