I have the TCD and FID setup in series and I am noticing the top of the peaks in the FID are very noisy? Do you know how I can correct this? Detector parameters are listed below.
TCD
Temp: 300°C
Reference: 20 ml/min
Makeup (He): 2 ml/min
FID
Temp: 300°C
Air: 400 ml/min
Hydrogen: 30 ml/min
Makeup (He): 25 ml/min