we are using the GC/MS System 8890 and 5977B since october 2022. Since 3 days I see baseline plateaus, irregular in some injections at changing positions as shown in the following image.
The plateaus appear in 1 injection, the following from the same vial has no plateaus and the next shows them again at different positions and so on.
I read, that it could be caused by electrical interferences.
Did anyone see those baseline plateaus before and could tell me, if it really is an electrical issue and if yes - what would be a good approach to fix it? Is there a device I could connect between the GC/MS and the power supply network?
Every help is appreciated.
Thank you very much.