title: Determination of metrafenone in vegetables by matrix solid-phase dispersion and HPLC-UV method.
abstract: A simple method for determination of metrafenone in vegetables by matrix solid-phase dispersion (MSPD) and HPLC was developed. All vegetable samples were extracted with dichloromethane, and then the extracts were directly separated on a reversed-phase column with isocratic elution without a cleanup step. The linearity of metrafenone was good with the concentration between 0.005 and 5mg/kg, and the limit of detection (LOD) of the metrafenone was 0.002mg/kg. The recoveries ranged from 86.5% to 104.8% with the relative standard deviations (RSDs) in the range of 2.1-7.9% (n=6). The results indicated that the method was simple, rapid, highly sensitive and suitable for the determination of metrafenone in vegetables.
authors: Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Northwest University, Xi'an 710069, China; National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China. Electronic address: bootan12@126.com.
authors: Jianjun
authors: J
authors: Li
authors: Xi'an Municipal Public Security Bureau Legal Medical & Chemistry Technical Section, Xi'an 710069, China.
authors: Yangyang
authors: Y
authors: Li
authors: National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors: Dongliang
authors: D
authors: Xu
authors: National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors: Jingyu
authors: J
authors: Zhang
authors: National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors: Yuxi
authors: Y
authors: Wang
authors: National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China.
authors: Chao
authors: C
authors: Luo
mesh_terms: D001577:Benzophenones / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D057230:Limit of Detection; D014675:Vegetables / Q000737:chemistry*
chemical_list: D001577:Benzophenones; C511340:metrafenone
keywords: HPLC; Matrix solid-phase dispersion; Metrafenone; Vegetables