title: 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.
abstract: 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.
authors.affiliation: 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
authors.forename: Fabio
authors.initials: F
authors.lastname: Gosetti
authors.forename: Ugo
authors.initials: U
authors.lastname: Chiuminatto
authors.forename: Davide
authors.initials: D
authors.lastname: Zampieri
authors.forename: Eleonora
authors.initials: E
authors.lastname: Mazzucco
authors.forename: Emilio
authors.initials: E
authors.lastname: Marengo
authors.forename: Maria Carla
authors.initials: MC
authors.lastname: Gennaro
mesh_terms: 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*
chemical_list: D000814:Aniline Compounds; D014874:Water Pollutants, Chemical