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Dissipation and residue of 2,4-D isooctyl ester in wheat and soil

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Abstract

A simple analytical method was developed to determine the 2,4-D isooctyl ester residue in wheat and soil by gas chromatography coupled with electron capture detector. Using the method, the dissipation and residue of 2,4-D isooctyl ester in wheat field was investigated. The average recoveries of 2,4-D isooctyl ester ranged from 80.1% to 110.0% with relative standard deviations of 2.4% to 16.1%. The pesticide showed a rapid dissipation rate either in wheat seedling or soil, with the half-lives of 1.0 to 3.0 days. The terminal residue results in wheat grain were much lower than the codex MRL (2.0 mg/kg). It could be considered safe to food and environment when using this herbicide for controlling weeds in wheat field.

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Acknowledgment

This study was supported by Innovation Fund for Graduate Student of China Agricultural University (KYCX2010103) and National S&T Major Special Project on Major New Drug Innovation (2009ZX09502-027).

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Correspondence to Fengmao Liu.

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Liu, C., Li, L., Wang, S. et al. Dissipation and residue of 2,4-D isooctyl ester in wheat and soil. Environ Monit Assess 184, 4247–4251 (2012). https://doi.org/10.1007/s10661-011-2259-4

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  • DOI: https://doi.org/10.1007/s10661-011-2259-4

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