-
- Posts: 3
- Joined: Mon Nov 22, 2021 7:44 pm
The baseline disturbance started to occur after analyzing samples of CF4 gas. I injected CF4 from one cylinder three times and the TIC was normal for each run. On the second cylinder of CF4 the baseline disturbance started to occur. We have been told that it's possible there is oil in the gases from a compressor but it is not known for certain. I'm wondering if this is what is causing the issue. I have tried to recondition the column several times and removed the first ~15cm of the inlet side of the column connected to the MS. The baseline disturbance is still occurring. The third image is the most recent helium injection.