I am getting an error message (attachments 1, Error Message). I looked around my files the data files from attachment 2 (PROJECTS folder). How would I go about fixing this error?

I noticed that you had the calibration as ISTD. I was using NORM. Once I switched to ESTD the amount% worked. Thank you.

So, the Amount% works if all the peaks are on the chromatogram, but most/all of our samples only have 1-3 peaks on the chromatogram. Is there a way to force the Amount% to calculate every time?

That works!

Thank You!!!

After I posted I got the user calculation to work for what we are doing. I'm using the following calculation:

[Amount]/([Amount]sum/100)

If there was a way to do this without the user column that would be great!

I am changing over to Clarity from a different GC software for doing headspace. With the old software I was able to get a % area normalization even when "not all compounds are found in sample." I think I have worked this problem out, but I do not always have the same amount of air going into the GC ...