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High Molecular Weight Impurity in 1,3-Butadiene on Rt-Alumina BOND/MAPD

GC_PC1212
Peaks
1.trans-2-Butene
2.1-Butene
3.Isobutene
4.cis-2-Butene
5.1,3-Butadiene
6.4-Vinylcyclohexene
ColumnRt-Alumina BOND/MAPD, 50 m, 0.53 mm ID, 10.0 µm (cat.# 19778)
Standard/SampleRefined 1,3-butadiene
Injection
Inj. Vol.:10 µL split
Liner:2.0 mm ID straight inlet liner (cat.# 20712)
Inj. Temp.:200 °C
Split Vent Flow Rate:100 mL/min
Oven
Oven Temp.:70 °C (hold 5 min) to 250 °C at 10 °C/min (hold 5 min)
Carrier GasHe, constant pressure (20 psi, 137.9 kPa)
DetectorFID @ 250 °C
Make-up Gas Flow Rate:30 mL/min
Make-up Gas Type:N2
Data Rate:20 Hz
InstrumentHP5890 GC
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