HELP
Posted: Wed Jul 10, 2019 6:00 pm
My phd project greatly depends on this.
Specific question: Do you normally have a make up box + Reference box in the TCD settings? My GC only has a reference flow rate box in the TCD settings. The TCD is connected to the column for the make up.
The peaks are appearing on the TCD signal graph of Oxygen/Argon (carrier +TCD ref). However, the actual flow rate through the TCD remains 0 (despite the setpoint being 35 ml/min). The comes with PPC (pneumatics) flow controllers for both the FID and TCD. I tried zeroing and calibrating them but still no flow via the TCD detector, even when the required temperature is reached 100 degrees celsius. I set my current at -40 millivolts for a range of 1.
What do I do? I am following the perkin elmer manual. The machine is a revamped Clarus 500 GC (software version 2.22). The only injection method is a Vici valco gas sampling valve, where 100% gaseous sample (from cylinders) is piped in the 6 port valve. There are no liquid samples like GC-MS or HPLC.
Your help is much appreciated!
Specific question: Do you normally have a make up box + Reference box in the TCD settings? My GC only has a reference flow rate box in the TCD settings. The TCD is connected to the column for the make up.
The peaks are appearing on the TCD signal graph of Oxygen/Argon (carrier +TCD ref). However, the actual flow rate through the TCD remains 0 (despite the setpoint being 35 ml/min). The comes with PPC (pneumatics) flow controllers for both the FID and TCD. I tried zeroing and calibrating them but still no flow via the TCD detector, even when the required temperature is reached 100 degrees celsius. I set my current at -40 millivolts for a range of 1.
What do I do? I am following the perkin elmer manual. The machine is a revamped Clarus 500 GC (software version 2.22). The only injection method is a Vici valco gas sampling valve, where 100% gaseous sample (from cylinders) is piped in the 6 port valve. There are no liquid samples like GC-MS or HPLC.
Your help is much appreciated!