Pure Chromatography
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gamma-Hydroxybutyrate (GHB) and gamma-Butyrolactone (GBL) on Rtx-BAC1 and Rtx-BAC2
Peaks | |
---|---|
1. | γ-hydroxybutyrate (GHB) / γ-butyrolactone (GBL)![]() |
Peaks | |
---|---|
2. | α-methylene-γ-butyrolactone (AMGBL) |

GC_PH00870
Columns | Rtx-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) | |
Sample | GHB, GBL, α-methylene-γ-butyrolactone (AMGBL) |
Conc.: | 10 µg/mL each in water |
Injection | |
Inj. Vol.: | 1000 µL headspace-loop split (split ratio 10:1) |
Liner: | 1mm Split (cat.# 20972) |
Inj. Temp.: | 200 °C |
Headspace-Loop | |
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 | |
Oven Temp.: | 50 °C (hold 3 min) to 150 °C at 20 °C/min (hold 7 min) |
Carrier Gas | He, constant pressure |
Linear Velocity: | 44 cm/sec @ 50 °C |
Detector | FID @ 240 °C |
Notes | Mixing time: 5min |
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