Simultaneous analysis of herbicide metribuzin and its transformation products in tomato using QuEChERS-based gas chromatography coupled to a triple quadrupole mass analyzer
| Autor: | Yan-Li Xie, Yu Zhang, Zhen-Dong Zhao, Cheng-Hui Zhang, Xiao-Ling Zhang, Lei-lei Tang |
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| Rok vydání: | 2017 |
| Předmět: |
Detection limit
Analyte Chromatography Chemistry 010401 analytical chemistry Analytical chemistry 010501 environmental sciences Quechers 01 natural sciences 0104 chemical sciences Analytical Chemistry Triple quadrupole mass spectrometer Transformation (genetics) chemistry.chemical_compound Metribuzin Amine gas treating Gas chromatography Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Microchemical Journal. 133:468-473 |
| ISSN: | 0026-265X |
| DOI: | 10.1016/j.microc.2017.04.025 |
| Popis: | A sensitive and simple method for the quantification of metribuzin and its major transformation products in tomato using QuEChERS-based gas chromatography coupled to a triple quadrupole mass analyzer (GC–MS/MS) with multiple reactions monitoring (MRM) was developed and validated. Residues of metribuzin, desamino-metribuzin (DA), diketo-metribuzin (DK), and desamino-diketo-metribuzin (DADK) were extracted from tomato by acetonitrile and purified by graphitized carbon black (GCB) and primary secondary amine (PSA). All analytes gave high correlation coefficients (r2) above 0.995, and the limits of detection (LOD) ranged from 0.002 to 0.008 mg/kg. The mean recoveries of the analysis ranged from 72.35% to 95.86% with relative standard deviation (RSD) ranging from 1.98% to 8.70% at three spiking levels (0.05 mg/kg, 0.5 mg/kg, 1.0 mg/kg). The method was also successfully applied to the determination of metribuzin and its transformation products in tomato samples collected from an experimental field. |
| Databáze: | OpenAIRE |
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