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S/N from blank in Empower
Posted: Tue Oct 07, 2014 5:57 pm
by shadow
Hi guys, I have trying to get a straight answer from Waters on how to calculate the S/N for a peak using the same area from a blank chromatogram and not from the same chromatogram, and I have had no success understanding them. COuld anyone explain how to do this to me? Thank you
Re: S/N from blank in Empower
Posted: Tue Oct 07, 2014 7:02 pm
by LC_labrat
Empower 2 allows EP S/N calculation using a blank, you will need to create a custom field.
It has the exact steps in the Help section of the software.
Re: S/N from blank in Empower
Posted: Tue Oct 07, 2014 11:24 pm
by badger
http://www.waters.com/webassets/cms/sup ... cale=en_US
Let us know how it goes, I actually have not been able to get intersample custom field calculations to work in empower
Re: S/N from blank in Empower
Posted: Thu Oct 09, 2014 8:53 am
by mattmullaney
Hi Shadow...please feel free to try this out:
http://www.waters.com/webassets/cms/sup ... ower_2.pdf
This will help greatly with the s/n calculation in Empower 2, whichever way you want to do the calculation. The Empower 3 has cleared this up greatly...apologies if you don't have that version, we just got it a while ago ourselves.
Best Wishes!
Re: S/N from blank in Empower
Posted: Thu Oct 09, 2014 2:18 pm
by badger
Hi Shadow...please feel free to try this out:
http://www.waters.com/webassets/cms/sup ... ower_2.pdf
This will help greatly with the s/n calculation in Empower 2, whichever way you want to do the calculation. The Empower 3 has cleared this up greatly...apologies if you don't have that version, we just got it a while ago ourselves.
Best Wishes!
Re: S/N from blank in Empower
Posted: Fri Oct 10, 2014 12:14 am
by mattmullaney
Badger,
My honest apologies, I am a nitwit.
Excellent Link!
I'll make a concerted effort to read the Entire Thread in Future.