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
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- 作者：Fabio Gosetti ; Ugo Chiuminatto ; Davide Zampieri ; Eleonora Mazzucco ; Emilio Marengo ; Maria Carla Gennaro
- 关键词：Chloroanilines ; On-line SPE ; HPLC– ; MS/MS ; Sun light irradiation ; Photodegradation
- 刊名：Journal of Chromatography A
- 出版年：2010
- 出版时间：14 May 2010
- 年：2010
- 卷：1217
- 期：20
- 页码：3427-3434
- 全文大小：793 K
文摘
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.