Analysis of Metribuzin and transformation products in soil by pressurized liquid extraction and liquid chromatographic–tandem mass spectrometry
2002; Elsevier BV; Volume: 957; Issue: 1 Linguagem: Inglês
10.1016/s0021-9673(01)01453-4
ISSN1873-3778
AutoresTrine Henriksen, Bo Svensmark, René K. Juhler,
Tópico(s)Antibiotics Pharmacokinetics and Efficacy
ResumoA 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%.
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