title: Dissipation and residue of bifenthrin in wheat under field conditions.
abstract: Field trials were carried out to investigate the dissipation and residue levels of bifenthrin in wheat. After extraction with acetonitrile, the samples were cleaned up by dispersive solid-phase extraction and detected by gas chromatography-mass spectrometry. The half-lives of bifenthrin in wheat seedlings ranged from 2.4 to 10.5 days. At harvest time, the terminal residues of bifenthrin were below the maximum residue limit (0.5 mg/kg) set by Codex Alimentarius Committee or European Union in wheat grain, which suggested that the use of this pesticide was safe for humans. However, the relatively high residue levels of bifenthrin in wheat straw should be paid attention to.
authors.affiliation: College of Science, China Agricultural University, Beijing, 100193, China.
authors.forename: Xiangwei
authors.initials: X
authors.lastname: You
authors.forename: Naiwen
authors.initials: N
authors.lastname: Jiang
authors.forename: Fengmao
authors.initials: F
authors.lastname: Liu
authors.forename: Congyun
authors.initials: C
authors.lastname: Liu
authors.forename: Suli
authors.initials: S
authors.lastname: Wang
mesh_terms: D002138:Calibration; D008401:Gas Chromatography-Mass Spectrometry; D006207:Half-Life; D010573:Pesticide Residues / Q000493:pharmacokinetics*; D011722:Pyrethrins / Q000493:pharmacokinetics*; D015203:Reproducibility of Results; D014908:Triticum / Q000378:metabolism*
chemical_list: D010573:Pesticide Residues; D011722:Pyrethrins; C099952:bifenthrin