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Evaluate BFB tune with Autofind
Posted: Tue Jun 22, 2010 1:07 am
by sllimbri
I have to prove that my BFB tune will pass using the Autofind option. I evaluate BFB that is in my cal std each day. 95 is the base ion in my tune parameters. 95 is also a major ion in TCE. So when I check the tune using autofind, it evaluates the TCE peak and not BFB. Is there a way to fix this in chemstation version G1701BA?
Posted: Tue Jun 22, 2010 4:20 pm
by JI2002
Just use IS/SS mixture only for the BFB.
Posted: Wed Jun 23, 2010 1:37 pm
by AICMM
It has been a long time since I had to do this but when I did the amount of BFB injected to evaluate the tune was much different than the amount loaded as IS/SS. Has this changed in the EPA methods?
Best regards.
Posted: Thu Jul 08, 2010 6:18 pm
by Bigbear
You can try setting the base mz to 174 in the edit BFB criteria. It's the second entry from the top.
It's worked for me .
Posted: Mon Jul 19, 2010 4:06 pm
by Omaejel
We use a blank run to evaluate our BFB tune files. You do lose a little bit of tune time when you do it that way vs tuning in the calibration verification std, but I think it's a reasonable trade off.