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Dissipation and Residues of Emamectin Benzoate in Cabbage

Abstract

Emamectin benzoate residue dynamics and final residues in supervised field trials at GAP conditions were studied. An HPLC–MS analytical method for the determination of emamectin benzoate in cabbage and soil was developed. The recoveries of emamectin benzoate on cabbage and soil were observed from 71 % to 102 % at fortification levels of 0.01, 0.1 and 1.0 mg/kg. The reported limit of quantification (LOQ) was found to be 0.01 mg/kg. The dissipation experiments showed the half-lives (T1/2) of emamectin benzoate was around 1 days. At pre-harvest intervals (PHI) of 7 and 12 days, emamectin benzoate residue was observed to be below the LOQ.

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Acknowledgments

The authors are grateful for the support from Chinese National Modern Industrial Technology System Foundation, P. R. of China (Project No: CARS-09-G15) and Chinese National Natural Science Foundation Support (Project No: 31171872).

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Correspondence to Canping Pan.

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Liu, S., Zhang, F., Wang, L. et al. Dissipation and Residues of Emamectin Benzoate in Cabbage. Bull Environ Contam Toxicol 89, 654–657 (2012). https://doi.org/10.1007/s00128-012-0729-1

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Keywords

  • Cabbage
  • Emamectin benzoate
  • Dissipation
  • Residue