I have GC-FID 8890 and i'm using Gas saver feature but I'm observing when I change time of gas saver , the retention time is changed.
for instance, I set gas saver at 20 ml/min after 2 min then inject methanol and the RT is 4.74 but when I change time to 15 min, the RT of methanol become 7.9 min!.
I'm very confused what's the relation between gas saver and retention time ??.
The column flow 2ml/min.