Separation of Hydrocarbons using Hydrogen Carrier Gas on the Rt-Alumina/MAPD

Injection
Column	Rt-Alumina/MAPD, 50 m, 0.53 mm ID, 10 µm (cat.# 19778)
Standard/Sample	Refinery Gas #4 (DCG Partnership, LTD)
Diluent:	Helium
Conc.:	250 μL injected via gastight syringe (cat.# 24572)
Inj. Vol.:	250 µL split (split ratio 10:1)
Liner:	4.0 mm ID precision liner w/ wool (cat.# 23305)
Inj. Temp.:	280 °C
Split Vent Flow Rate:	138.12 mL/min
Gas Saver Time:	2 min
Gas Saver Flow Rate:	20 mL/min
Oven
Oven Temp.:	30 °C (hold 1 min) to 80 °C at 30 °C/min to 170 °C at 4 °C/min (hold 1 min)
Carrier Gas	H₂, constant pressure (7.31 psi, 50.4 kPa)
Linear Velocity:	90.562 cm/sec @ 280 °C
Dead Time:	0.92018 min @ 30 °C

Detector	FID @ 280 °C
Make-up Gas Flow Rate:	45 mL/min
Make-up Gas Type:	N₂
Hydrogen flow:	40 mL/min
Air flow:	400 mL/min
Data Rate:	50 Hz
Instrument	Agilent 7890A GC
Sample Preparation	250 μL injected via gastight syringe (cat.# 24572).

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