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Identifying constituents in commercial gasoline using Fourier transform-infrared spectroscopy and independent component analysis

Pasadakis Nikos, Andreas A. Kardamakis

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/DE945B99-8029-438A-BF72-2E37FC6F02BF
Έτος 2006
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά Nikos Pasadakis, Andreas A. Kardamakis: “Identifying con stituents in commercial gasoline using Fourier transform -infrared spectroscopy and independent component analysis”, Analytica Chimica Acta, Volume 578, Issue 2, 25 Sep. 2006, Pages 250–255 DOI:10.1016/j.aca.2006.06.072 https://doi.org/10.1016/j.aca.2006.06.072
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Περίληψη

A new method is proposed that enables the identification of five refinery fractions present in commercial gasoline mixtures using infrared spectroscopic analysis. The data analysis and interpretation was carried out based on independent component analysis (ICA) and spectral similarity techniques. The FT-IR spectra of the gasoline constituents were determined using the ICA method, exclusively based on the spectra of their mixtures as a blind separation procedure, i.e. assuming unknown the spectra of the constituents. The identity of the constituents was subsequently determined using similarity measures commonly employed in spectra library searches against the spectra of the constituent components. The high correlation scores that were obtained in the identification of the constituents indicates that the developed method can be employed as a rapid and effective tool in quality control, fingerprinting or forensic applications, where gasoline constituents are suspected.

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