Hi all,
I'm working with carotenoids, and I have to compare several different chromatograms (HPLC-PDA), absorbance for retention time, to evaluate if they are similar or not.
Compounds described by the chromatogram are precursor and metabolites, then not independent data, I cannot use multivariate analysis.
How I can do this analysis and obtain a coefficient of similarities or matching factor?
I know many good software to do alignment between reference chromatogram and samples, but they work on LC-MS.

Thanks for any advice or suggestion.