I would like to compare the spectra between unknown peak and my active peak. Is it possible to do that using UV peak matching?
If you would like to visually compare the spectra you can simply extract the spectra from both peaks and compare. If you need a mathematical fit then it does look like you could label the unknowns in the peak table and then add the reference spectrum from the active to get a comparison. I am not sure how practical this is and it will not do anything for unknown peaks that have not been added to the peak table. In the example below, I added the spectrum from peak D to the reference for unknown 1 and 2 to give a fit for those peaks against that spectra.
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