title: Analysis of Metribuzin and transformation products in soil by pressurized liquid extraction and liquid chromatographic-tandem mass spectrometry.
abstract: A method developed for study of metribuzin degradation in soil is presented. LC-MS-MS and electrospray ionisation was used for analysis of metribuzin and the metabolites deaminometribuzin (DA), diketometribuzin (DK) and deaminodiketometribuzin (DADK). Soil samples were extracted by pressurized liquid extraction using methanol-water (75:25) at 60 degrees C. In general, recoveries were about 75% for metribuzin, DA and DADK and their detection limit in soil was 1.25 microg/kg. Lower sensitivity was observed for DK, with detection limit at 12.5 microg/kg and recovery about 50%.
authors.affiliation: Geological Survey of Denmark and Greenland (GEUS), Copenhagen, Denmark.
authors.forename: Trine
authors.initials: T
authors.lastname: Henriksen
authors.forename: Bo
authors.initials: B
authors.lastname: Svensmark
authors.forename: René K
authors.initials: RK
authors.lastname: Juhler
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D006540:Herbicides / Q000032:analysis*; D013058:Mass Spectrometry / Q000379:methods*; D011312:Pressure; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012989:Soil Pollutants / Q000032:analysis*; D014227:Triazines / Q000032:analysis*
chemical_list: D006540:Herbicides; D012989:Soil Pollutants; D014227:Triazines; C009235:metribuzin