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- Posts: 30
- Joined: Tue Oct 24, 2017 1:30 pm
I faced an issue recently . When running GCMS Tuning standard on the GCMS using EPA8270E, the benzidine peak has became so small till 20000 in abundance only for a 50ppm mix! It used to be a relatively sharp peak with abundance 2million!
It is really a weird thing as I had changed to a new column, used a new liner and septa and changed to a new gold seal, changed ferrules and trimmed columns and washed the ion source and did a dftpp tuning! But the issue cannot be resolved !
Can someone please advise?
Thank you.