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Negative spikes in MS with positive spikes in FID

Question asked by dexter91 on Mar 25, 2020

Can anyone explain the negative dips in the MS TIC and why they are perfectly aligned with the spikes in the FID? Is there any troubleshooting that I can do to relieve this problem? thank you

 

7890 GC with 5977A MS (inert source)

Mass hunter B.07.06.2704 with F.01.03 Chemstation DA 

 

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