Determination of two phototransformation products of bentazone using quadrupole time-of-flight mass spectrometry

descriptionPublicationkeyboard_double_arrow_right Article 31 May 2007 Spain English Publisher:Springer Science and Business Media LLCJournal:Analytical and Bioanalytical Chemistry, volume 388, pages 1,227-1,234 (issn: 1618-2642, eissn: 1618-2650,

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Authors: Peschka, Manuela; Petrovic, Mira; Knepper, Thomas P.; Barceló, Damià;

doi: 10.1007/s00216-007-1349-1

pmid: 17541562

handle: 10261/10761

Determination of two phototransformation products of bentazone using quadrupole time-of-flight mass spectrometry

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Abstract

The transformation products 2-(isopropylcarbamoyl)phenylsulfamic acid and 2-(1-hydroxypropane-2-yl)-1,2-dihydroindazol-3-one could be determined during the photolysis of the herbicide bentazone. Degradation experiments were carried out with different types of water in a natural sunlight simulating system. Besides the anticipated hydroxylated bentazone, the second transformation product was identified by means of exact mass measurement using ultra-performance liquid chromatography/quadrupole time-of-flight mass spectrometry (UPLC/QqToF MS). Both phototransformation products occurred in all water types tested. The required irradiation time was matrix dependent. 2-(Isopropylcarbamoyl)phenylsulfamic acid was detected in a drainage channel in the Ebro river delta (Catalonia, Spain).

Country

Spain

Related Organizations

Spanish National Research Council
Spain
European University of Applied Sciences
Germany

Keywords

Ions, Chromatography, Spectrometry, Mass, Electrospray Ionization, Photolysis, Time Factors, Light, Herbicides, Photochemistry, Bentazone, Structure elucidation, Water, Benzothiadiazines, Quadrupole time-of-flight mass spectrometry (QqToF MS), Chemistry Techniques, Analytical, Mass Spectrometry, Models, Chemical, Chromatography, Liquid

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