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Comparison of Glycols Before and After 600 Water Injections on Rtx-Wax

Comparison of Glycols Before and After 600 Water Injections on Rtx-Wax

PeakstR (min)
1.2-Butoxyethanol (IS)5.55
2.Propylene glycol6.27
3.Ethylene glycol6.41
image
GC_EV1454
ColumnRtx-Wax, 30 m, 0.53 mm ID, 1.00 µm (cat.# 12455)
SampleGlycols standard (cat.# 30471)
2-Butoxyethanol
Diluent:Water:methanol (90:10)
Conc.:50 µg/mL (1 ng on-column)
Injection
Inj. Vol.:1 µL split (split ratio 50:1)
Liner:Premium 4 mm Precision inlet liner w/wool (cat.# 23305.1)
Inj. Temp.:250 °C
Oven
Oven Temp.:40 °C (hold 1 min) to 250 °C at 30 °C/min
Carrier GasHe, constant flow
Flow Rate:5.7 mL/min
Linear Velocity:40 cm/sec
DetectorFID @ 250 °C
Make-up Gas Flow Rate:45 mL/min
Make-up Gas Type:N2
Hydrogen flow:40 mL/min
Air flow:450 mL/min
Data Rate:20 Hz
InstrumentAgilent/HP6890 GC
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