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Título

Determination of simazine, terbutilazine and their dealkilated chlorotriazine metabolites in soil using sonication microextraction and gas chromatography

AutorNavarro, Simón; Oliva, José; Barba, Alberto; García Izquierdo, Carlos
Palabras claveSimazine
Terbuthylazine
Soils
Chloro dealkylated metabolites
Fecha de publicaciónsep-2000
EditorAOAC International
CitaciónJournal of AOAC International 83(5): 1239-1243 (2000)
ResumenA rapid analytical method is proposed for the determination of simazine, terbuthylazine, and their chloro dealkylated metabolites (simazine-desethyl, simazine-bisdesethyl, and terbuthylazine-desethyl) in soil. A sonication micromethod is presented for the extraction of s-triazine herbicides and their metabolites. Final determination is by gas chromatography (GC) with nitrogen–phosphorus detection. The identity of all compounds was confirmed by GC with mass selective detection in the selected-ion monitoring mode. All chromatograms were very clean, without interfering peaks, and no cleanup was needed. The limits of detection were 1 pg for simazine-bisdesethyl; 5 pg for simazine, terbuthylazine, and terbuthylazine-desethyl; and 10 pg for simazine-desethyl. The limits of quantitation were 1, 5, and 10 ppb, respectively. Mean recoveries from fortified soils ranged from 76% for simazine-bisdesethyl to 102% for simazine-desethyl, with relative standard deviations of 3–6%.
Versión del editorhttp://www.atypon-link.com/AOAC/doi/abs/10.5555/jaoi.2000.83.5.1239
URIhttp://hdl.handle.net/10261/16130
ISSN1060-3271
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