Issue with Calibration Curve in Skyline

support
Issue with Calibration Curve in Skyline angela peralbo  2025-09-29 01:01
 

Dear Skyline Team,

I am experiencing an issue with the calibration curve in Skyline. It seems that the program is using peak area values instead of the total area when generating the calibration curve. As a result, the regression line is counterintuitive: the signal decreases as the concentration of the standard increases, even though the total area is actually larger for higher concentrations.

Could you please confirm whether this behavior is expected, or if there is a setting I should adjust to ensure the calibration curve is based on total area values?

Thank you very much for your support.

Best regards,

 
 
Nick Shulman responded:  2025-09-29 07:13
Can you send us your Skyline document?

In Skyline you can use the menu item:
File > Share
to create a .zip file containing your Skyline document and supporting files including extracted chromatograms.

Files which are less than 50MB can be attached to these support requests. You can always upload larger files here:
https://skyline.ms/files.url

Yes, Skyline would normally be expected to use the sum of all the transition peak areas when calculating the value to be plotted on the Y-axis of calibration curve graph.
After I see your Skyline document it will probably be easy to tell you exactly what is going on.
-- Nick