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Combination of photo-induced fluorescence and GC–MS for elucidating the photodegradation mechanisms of diflubenzuron and fenuron pesticides

Diflubenzuron (DFB) and fenuron (FEN) are benzoylurea and phenylurea pesticides, widely used in Senegal, that do not exhibit any natural fluorescence, but can be determined by means of photoinduced fluorescence (PIF) methods. Photodegradation of DFB and FEN yielded a number of fluorescent and non?fluorescent photoproducts. For both pesticides, at least 10 photoproducts were detected and identified by gas chromatography–mass spectrometry (GC/MS). To identify the formed fluorescent DFB and FEN photoproducts, their fluorescence spectra were compared with those of standard compounds, including phenol and p?hydroxyaniline.

Auteur(s) : Pape A. Diaw, Olivier M.A. Mbaye, Diene D. Thiaré, Nihal Oturan, Mame Diabou Gaye-Seye, Atanasse Coly, Bernard Le Jeune, Philippe Giamarchi, Mehmet A.
Pages : 1-7
Année de publication : 2019
Revue : Luminescence
N° de volume : 34(1)
Type : Article
Mise en ligne par : COLY Atanasse