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- Posts: 28
- Joined: Mon Nov 07, 2011 9:05 am
I am currently working on a method to determine PAH in urine with GCMS. My peaks are nice and sharp in the spiked samples. However, when I run standards, I get extensive tailing and -80% in peak area. Liner and septum are brand new. Can this be a matter of sample/standard solvent? Can anyone help?