title: Dissipation and residue of 2,4-D isooctyl ester in wheat and soil.
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.
authors.affiliation: College of Science, China Agricultural University, Beijing, 100193, People's Republic of China.
authors.forename: Congyun
authors.initials: C
authors.lastname: Liu
authors.forename: Li
authors.initials: L
authors.lastname: Li
authors.forename: Suli
authors.initials: S
authors.lastname: Wang
authors.forename: Xiangwei
authors.initials: X
authors.lastname: You
authors.forename: Shuren
authors.initials: S
authors.lastname: Jiang
authors.forename: Fengmao
authors.initials: F
authors.lastname: Liu
mesh_terms: D015084:2,4-Dichlorophenoxyacetic Acid / Q000031:analogs & derivatives* / Q000032:analysis; D006207:Half-Life; D006540:Herbicides / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D014908:Triticum / Q000737:chemistry*
chemical_list: D006540:Herbicides; D010573:Pesticide Residues; D012987:Soil; D012989:Soil Pollutants; C046635:2,4-dichlorophenoxyacetic acid isooctyl ester; D015084:2,4-Dichlorophenoxyacetic Acid