Application of coupled liquid chromatography–mass spectrometry in photolysis studies of the herbicide triflusulfuron‐methyl | Zendy

Chafik Nourrddine | Zendy; Mansour Mohammed | Zendy; Elamrani Btissam | Zendy; Schramm KarlWerner | Zendy; Kettrup Antonius | Zendy; Elamrani M Khalid | Zendy

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Application of coupled liquid chromatography–mass spectrometry in photolysis studies of the herbicide triflusulfuron‐methyl

Author(s) -

Chafik Nourrddine,

Mansour Mohammed,

Elamrani Btissam,

Schramm KarlWerner,

Kettrup Antonius,

Elamrani M Khalid

Publication year - 2001

Publication title -

pest management science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.296

H-Index - 125

eISSN - 1526-4998

pISSN - 1526-498X

DOI - 10.1002/ps.314

Subject(s) - sulfonylurea , chemistry , photodissociation , photodegradation , mass spectrometry , chromatography , aqueous solution , tandem mass spectrometry , photochemistry , liquid chromatography–mass spectrometry , cleavage (geology) , organic chemistry , photocatalysis , medicine , insulin , endocrinology , catalysis , geotechnical engineering , fracture (geology) , engineering

The photochemical fate of the herbicide triflusulfuron‐methyl in aqueous solution under UV light (λ > 290 nm) was investigated. Nine photoproducts were detected and tentatively identified by LC/MS and LC/MS/MS analysis. The main routes of degradation involve the cleavage and/or contraction of the sulfonylurea bridge with the elimination of sulfur dioxide, which increases the acidity of the reaction medium. On the basis of the results obtained a photodegradation pathway is proposed. © 2001 Society of Chemical Industry

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