title: Dynamic microwave assisted extraction coupled with dispersive micro-solid-phase extraction of herbicides in soybeans.
abstract: Non-polar solvent dynamic microwave assisted extraction was firstly applied to the treatment of high-fat soybean samples. In the dispersive micro-solid-phase extraction (D-µ-SPE), the herbicides in the high-fat extract were directly adsorbed on metal-organic frameworks MIL-101(Cr). The effects of several experimental parameters, including extraction solvent, microwave absorption medium, microwave power, volume and flow rate of extraction solvent, amount of MIL-101(Cr), and D-µ-SPE time, were investigated. At the optimal conditions, the limits of detection for the herbicides ranged from 1.56 to 2.00 μg kg(-1). The relative recoveries of the herbicides were in the range of 91.1-106.7%, and relative standard deviations were equal to or lower than 6.7%. The present method was simple, rapid and effective. A large amount of fat was also removed. This method was demonstrated to be suitable for treatment of high-fat samples.
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Na
authors.initials: N
authors.lastname: Li
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Lijie
authors.initials: L
authors.lastname: Wu
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, PR China.
authors.forename: Li
authors.initials: L
authors.lastname: Nian
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Song
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Lei
authors.initials: L
authors.lastname: Lei
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Yang
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Kun
authors.initials: K
authors.lastname: Wang
authors.affiliation: College of Chemistry and Life Science, Changchun University of Technology, Yanan Street 2055, Changchun 130012, PR China.
authors.forename: Zhibing
authors.initials: Z
authors.lastname: Wang
authors.affiliation: College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, PR China.
authors.forename: Liyuan
authors.initials: L
authors.lastname: Zhang
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Hanqi
authors.initials: H
authors.lastname: Zhang
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
authors.forename: Aimin
authors.initials: A
authors.lastname: Yu
authors.affiliation: College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China. Electronic address: analchem@jlu.edu.cn.
authors.forename: Ziwei
authors.initials: Z
authors.lastname: Zhang
mesh_terms: D000327:Adsorption; D002851:Chromatography, High Pressure Liquid; D002857:Chromium / Q000737:chemistry; D056831:Coordination Complexes / Q000737:chemistry; D006540:Herbicides / Q000032:analysis* / Q000737:chemistry; D006586:Hexanes / Q000737:chemistry; D000073396:Metal-Organic Frameworks; D008872:Microwaves; D052616:Solid Phase Extraction; D013025:Glycine max / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D006540:Herbicides; D006586:Hexanes; C000589635:MIL-101; D000073396:Metal-Organic Frameworks; D002857:Chromium; C026385:n-hexane
keywords: Dynamic microwave assisted extraction; Herbicides; MIL-101(Cr); Non-polar solvent extraction; Soybean