Some complex compounds, e.g. microplastic, giant PAHs, their mass spectrum peaks are as follows. The mass differences have obivious periodicity.B. Apicella used FFT and autocorrelation function to simplify mass spectrum. It's a powerful tool but i can't understand how to convert time space to mass space. Do anyone have a similar experience? How to simplify mass spectrum by FFT ? I need some practical advice.
Ref:
"Fast Fourier Transform and autocorrelation function for the analysis of complex mass spectra"
Jürgen Weippert
Probably the fastest way to get an answer would be to DM the authors of that study; they are all on RG so getting the info from at least one of them would be probably more accurate than anything you will get here...
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