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Residue analysis of fosthiazate in cucumber and soil by QuEChERS and GC-MS

  • Min Wu EMAIL logo and Jiye Hu
Published/Copyright: June 24, 2014
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Chemical Papers
From the journal Chemical Papers Volume 68 Issue 10

Abstract

A convenient method was developed for the determination and validation of fosthiazate in cucumber and soil. The procedure is based on liquid partitioning with acetonitrile followed by dispersive solid phase extraction as the clean-up step, after which samples were analysed by gas chromatography-mass spectrometry (GC-MS). The average recoveries ranged from 91.2 % to 99.0 % with relative standard deviations (RSDs) of less than 6.05 %, at three fortification levels (0.02 mg kg−1, 0.1 mg kg−1, 0.5 mg kg−1) in cucumber and soil, and the limits of quantification (LOQs) for fosthiazate were all established at 0.02 mg kg−1. The proposed method was applied successfully to analyses of the dissipation and residue of fosthiazate in field trials. The dissipation rate of fosthiazate was described using pseudo-first-order kinetics with a half-life of 4.33 days and 4.08 days in soil in Beijing and Shandong, respectively. In the terminal residue experiment, fosthiazate residues in cucumber and soil were clearly below the maximum residue level (MRL, 0.2 mg kg−1) set in China.

Keywords: fosthiazate; cucumber; soil; GC-MS; QuEChERS; dissipation and residue

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Published Online: 2014-6-24
Published in Print: 2014-10-1

© 2014 Institute of Chemistry, Slovak Academy of Sciences

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  2. Evaluation of antioxidant activity and DNA cleavage protection effect of naphthyl hydroxamic acid derivatives through conventional and fluorescence microscopic methods
  3. Modelling of ORL1 receptor-ligand interactions
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  9. RP-HPLC-UV-ESI-MS phytochemical analysis of fruits of Conocarpus erectus L.
  10. Residue analysis of fosthiazate in cucumber and soil by QuEChERS and GC-MS
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https://doi.org/10.2478/s11696-014-0589-8
Keywords for this article
fosthiazate; cucumber; soil; GC-MS; QuEChERS; dissipation and residue

Articles in the same Issue

  1. Chemical preparation and applications of silver dendrites
  2. Evaluation of antioxidant activity and DNA cleavage protection effect of naphthyl hydroxamic acid derivatives through conventional and fluorescence microscopic methods
  3. Modelling of ORL1 receptor-ligand interactions
  4. Kinetics of enantioselective liquid-liquid extraction of phenylglycine enantiomers using a BINAP-copper complex as chiral selector
  5. Diffusive transport of Cu(II) ions through thin ion imprinted polymeric membranes
  6. Magnetic mixed matrix membranes in air separation
  7. The use of impregnated perlite as a heterogeneous catalyst for biodiesel production from marula oil
  8. Nitrobenzene degradation by micro-sized iron and electron efficiency evaluation
  9. RP-HPLC-UV-ESI-MS phytochemical analysis of fruits of Conocarpus erectus L.
  10. Residue analysis of fosthiazate in cucumber and soil by QuEChERS and GC-MS
  11. Degradation of polylactide using basic ionic liquid imidazolium acetates
  12. Ring-opening polymerisation of ɛ-caprolactone catalysed by Brønsted acids
  13. Click synthesis by Diels-Alder reaction and characterisation of hydroxypropyl methylcellulose-based hydrogels
  14. Preparation and physical properties of chitosan-coated calcium sulphate whiskers
  15. A facile synthetic route for antineoplastic drug GDC-0449
  16. Two new frameworks for biphenyl-3,3′,5,5′-tetracarboxylic acid and nitrogen-containing organics
  17. Antioxidant and binding properties of methanol extracts from indigo plant leaves
  18. Dithiols as more effective than monothiols in protecting biomacromolecules from free-radical-mediated damage: in vitro oxidative degradation of high-molar-mass hyaluronan
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