Hello,
I am trying to run a packed column on a 7890 GC. As far as I know, the system is setup correctly in terms of hardware. I am pretty new with packed columns on an Agilent GC, so I am not sure where to even begin in terms of method settings.
I am looking for optimal method settings. I am running phenethyl alcohol as a standard with He as the carrier. What are typical flow rates and oven ramps?
Currently, I am only getting a solvent front (MeOH) that is about a minute long and no phenethyl alcohol peak. Below is my current method.
Thank you in advance for any advise!
Oven Temperature: Initial | 120° C Rate 20°C/minute |
| 200°C (hold 3 minutes) |
Injector Temperature | 230°C |
Inlet flow | 25 mL/min |
Control Mode | Pressure |
Detector Temperature | 250°C |
Air Flow | 450 mL/min |
H2 Fuel Flow | 40 mL/min |
Makeup Flow: He | 45 mL/min |
Injection Volume | 1.0 µL |
Packed Column | Suppleco 80/100 Mesh 2 m x 2 mm 5% FFAP or Equivalent |