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GHB Analysis (GBL and AMGBL) on Rtx-BAC Plus 1

Peaks
1.GBL
Peaks
2.AMGBL
image
GC_CF1164
ColumnRtx-BAC Plus 1, 30 m, 0.32 mm ID, 1.8 µm (cat.# 18004)
SampleGamma-butyrolactone (GBL) (cat.# 34077)
Alpha-methylene-gamma-butyrolactone (AMGBL) (cat.# 34079)
Injectionheadspace-loop split (split ratio 10:1)
Liner:1 mm straight inlet liner (cat.# 20972)
Headspace-Loop
Inj. Port Temp.:200 °C
Instrument:Tekmar HT3
Inj. Time:1 min
Transfer Line Temp.:125 °C
Valve Oven Temp.:125 °C
Sample Temp.:100 °C
Sample Equil. Time:10 min
Vial Pressure:30 psi
Pressurize Time:2 min
Loop Pressure:20 psi
Loop Fill Time:1 min
Oven
Oven Temp.:80 °C (hold 0 min) to 180 °C at 10 °C/min (hold 0 min)
Carrier GasHe, constant flow
Linear Velocity:48 cm/sec
DetectorFID @ 240 °C
Make-up Gas Flow Rate:30 mL/min
Make-up Gas Type:N2
InstrumentAgilent/HP6890 GC
NotesSample was prepared by injecting 1 µL of each standard into a capped headspace vial. The mass of each compound inside the headspace vial was 1 µg.

Headspace concentrator courtesy of Teledyne Tekmar, Mason, OH.
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