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gamma-Hydroxybutyrate (GHB) and gamma-Butyrolactone (GBL) on Rtx-BAC1 and Rtx-BAC2

1.γ-hydroxybutyrate (GHB) / γ-butyrolactone (GBL)
2.α-methylene-γ-butyrolactone (AMGBL)
ColumnsRtx-BAC1 30 m, 0.32 mm ID, 1.8 µm (cat.# 18003)
and Rtx-BAC2 30 m, 0.32 mm ID, 1.2 µm (cat.# 18002)
with Universal “Y” Press-Tight Connector (cat.# 20405)
SampleGHB, GBL, α-methylene-γ-butyrolactone (AMGBL)
Conc.:10 µg/mL each in water
Inj. Vol.:1000 µL headspace-loop split (split ratio 10:1)
Liner:1mm Split (cat.# 20972)
Inj. Temp.:200 °C
Instrument:Teledyne/Tekmar HT3
Transfer Line Temp.:120 °C
Sample Temp.:100 °C
Sample Equil. Time:15 min
Vial Pressure:10 psi
Pressurize Time:2 min
Loop Fill Time:2 min
Oven Temp.:50 °C (hold 3 min) to 150 °C at 20 °C/min (hold 7 min)
Carrier GasHe, constant pressure
Linear Velocity:44 cm/sec @ 50 °C
DetectorFID @ 240 °C
NotesMixing time: 5min