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- Posts: 4
- Joined: Sat Sep 12, 2020 1:02 am
I have a question about a signal that apperars always into my chromatograms obtained from GC-TOF analysis. The problem is particulary importan into diluited samples.
I have a GC-TOF and, during my air analysis, I observed a peak into the chromatogram, characterized by a m/z signal of 44. I don't see lower m/z due to the mass setting.
I have tried to set a solvent delay in order to cut off this signal (firstly I thought that it could be a solvent signal), but it is always present. In diluited samples, this peak is very important, but I can't remove it.
Is it possibile that, after the solvent delay, the source turns on and that peak is due to an electrical signal I detect?
Thanks a lot for your help!