title: Dissipation and residues of the herbicide mesotrione in maize and soil in open field.
abstract: The purpose of this article was to establish a simple residue analysis method for mesotrione in maize using high performance liquid chromatography tandem mass spectrometry. The method was then used to study the dissipation and residues in maize seedling and soil. The half-lives of mesotrione in maize plants and soil were 1.37, 4.31 days in Beijing, and 0.97, 1.80 days in Shandong, respectively. The ultimate residues of mesotrione were undetected in soil, maize grain and stem at the harvest time, suggesting that mesotrione could be safely used in maize crops with an appropriate dosage and application.
authors.affiliation: College of Science, China Agricultural University, Beijing, 100193, China.
authors.forename: Xiaoxu
authors.initials: X
authors.lastname: Chen
authors.forename: Wenming
authors.initials: W
authors.lastname: Li
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wu
authors.forename: Weitao
authors.initials: W
authors.lastname: Chen
authors.forename: Lijun
authors.initials: L
authors.lastname: Han
mesh_terms: D002851:Chromatography, High Pressure Liquid; D003512:Cyclohexanones / Q000032:analysis*; D004784:Environmental Monitoring; D006540:Herbicides / Q000032:analysis*; D008956:Models, Chemical; D010573:Pesticide Residues / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D053719:Tandem Mass Spectrometry; D003313:Zea mays / Q000737:chemistry*
chemical_list: D003512:Cyclohexanones; D006540:Herbicides; D010573:Pesticide Residues; D012987:Soil; D012989:Soil Pollutants; C432907:mesotrione