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Dissipation and Residues of Fluroxypyr-meptyl in Rice and Environment

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Abstract

A simple and reliable analytical method for analysis of fluroxypyr-meptyl residue in rice, soil and water was investigated. The residue levels and dissipation rates of fluroxypyr-meptyl (34% AS) were determined by GC–MSD in selected ion monitoring mode. In the supervised field trials, the half-life of fluroxypyr- meptyl in rice plant was in the range 1.25–4.13 days. The half-lives of fluroxypyr-meptyl in soil and water were 2.29 and 1.73 days, respectively. In order to assess the dissipation of fluroxypyr-meptyl in the environment, a laboratory simulated experiment was carried out in soil and water. The terminal residues of fluroxypyr-meptyl in rice plant, husked rice, rice hull and soil samples were undetectable at harvest. It showed that fluroxypyr-meptyl may be safe to use according to the recommended dosage suggested by the corporation.

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Authors and Affiliations

  1. Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, China

    Lei Wang, Pengyue Zhao & Canping Pan

  2. Plant Protection Institute of the Chinese Academy of Agricultural Sciences, Beijing, China

    Jun Xu

Authors
  1. Lei Wang
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  2. Jun Xu
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  3. Pengyue Zhao
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  4. Canping Pan
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Correspondence to Canping Pan.

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Wang, L., Xu, J., Zhao, P. et al. Dissipation and Residues of Fluroxypyr-meptyl in Rice and Environment. Bull Environ Contam Toxicol 86, 449–453 (2011). https://doi.org/10.1007/s00128-011-0218-y

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  • DOI: https://doi.org/10.1007/s00128-011-0218-y

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