title: Matrix solid-phase dispersion coupled with magnetic ionic liquid dispersive liquid-liquid microextraction for the determination of triazine herbicides in oilseeds.
abstract: A novel method was developed for the determination of six triazine herbicides from oilseeds by matrix solid-phase dispersion combined with magnetic ionic liquid dispersive liquid-liquid microextraction (MSPD-MIL-DLLME), followed by ultrafast liquid chromatography with ultraviolet detection (UFLC-UV). The MIL, 1-butyl-3-methylimidazolium tetrachloroferrate ([C4mim][FeCl4]), was used as the microextraction solvent to simplify the extraction procedure by magnetic separation. The effects of several important experimental parameters, including type of dispersant, ratio of sample to dispersant, type and volume of collected elution solvent, type and volume of MIL, were investigated. Using the present method, UFLC-UV gave the limits of detection (LODs) of 1.20-2.72 ng g(-1) and the limits of quantification (LOQs) of 3.99-9.06 ng g(-1) for triazine herbicides. The recoveries were ranged from 82.9 to 113.7% and the relative standard deviations (RSDs) were equal or lower than 7.7%. The present method is easy-to-use and effective for extraction of triazine herbicides from oilseeds and shows the potentials of practical applications in the treatment of the fatty solid samples.
authors: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors: Yuanpeng
authors: Y
authors: Wang
authors: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors: Ying
authors: Y
authors: Sun
authors: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors: Bo
authors: B
authors: Xu
authors: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors: Xinpei
authors: X
authors: Li
authors: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors: Xinghua
authors: X
authors: Wang
authors: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors: Hanqi
authors: H
authors: Zhang
authors: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China. Electronic address: songdq@jlu.edu.cn.
authors: Daqian
authors: D
authors: Song
mesh_terms: D010367:Arachis / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D004867:Equipment Design; D006368:Helianthus / Q000737:chemistry; D006540:Herbicides / Q000032:analysis*; D007093:Imidazoles / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D057230:Limit of Detection; D059627:Liquid Phase Microextraction / Q000295:instrumentation*; D008280:Magnetics / Q000295:instrumentation; D059346:Magnets / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000295:instrumentation*; D013025:Glycine max / Q000737:chemistry; D014227:Triazines / Q000032:analysis*
chemical_list: C525963:1-butyl-3-methylimidazolium; D006540:Herbicides; D007093:Imidazoles; D052578:Ionic Liquids; D014227:Triazines
keywords: Dispersive liquid–liquid microextraction; Magnetic ionic liquids; Magnetic separation; Matrix solid-phase dispersion; Oilseed