A new on-line solid phase extraction high performance liquid chromatography tandem mass spectrometry method to study the sun light photodegradation of mono-chloroanilines in river water.
The study investigates the natural photodegradation pathway of mono-chloroanilines in river waters, with the aim to identify the predominant photoproducts formed. At this purpose a new sensitive on-line SPE HPLC-MS/MS method has been developed with LOQ values equal or lower than the legal threshold concentration levels allowed for mono-chloroanilines in waters. The degradation processes of o-, m- and p-chloroaniline have been investigated subjecting their solutions, prepared both in ultrapure and in river water, to sun light irradiation simulated by a solar box system. The SPE HPLC-MS/MS methodology allowed to evaluate the degradation kinetics, to identify the predominant photodegradation products and to propose the chemical structures. Two photoproducts (aniline and 3-aminophenol), for which standards are available, have also been quantified.
Gosetti
Fabio
F
University of Piemonte Orientale, DISAV Dipartimento di Scienze dell'Ambiente e della Vita, viale T. Michel 11, 15121 Alessandria, Italy. fabio.gosetti@mfn.unipmn.it
Chiuminatto
Ugo
U
Zampieri
Davide
D
Mazzucco
Eleonora
E
Marengo
Emilio
E
Gennaro
Maria Carla
MC
D000814:Aniline Compounds / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D008027:Light; D045483:Rivers / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
D000814:Aniline Compounds; D014874:Water Pollutants, Chemical