GC Analysis of Ibuprofen Enantiomers (Underivatized) on β-DEX^™ 120

column

Supelco β-DEX 120, 30 m x 0.25 mm I.D., 0.25 μm (24304)

gradient

50 °C (5 min), 5 °C/min to 200 °C (10 min)

inj. temp.

250 °C

detector

FID, 250 °C

carrier gas

helium, 60 m/sec., constant flow

injection

1 μL, 100:1 split

sample

2 mg/mL in methanol
peak 1: S(+)-ibuprofen
peak 2: R(-)-ibuprofen

liner

4 mm I.D., FocusLiner^™