title: Development of high internal phase emulsion polymeric monoliths for highly efficient enrichment of trace polycyclic aromatic hydrocarbons from large-volume water samples.
abstract: In this work, polymerized high internal phase emulsion (polyHIPE) monoliths were prepared and applied as monolithic adsorbent materials for proconcentration of trace polycyclic aromatic hydrocarbons (PAHs) from large-volume water samples. The monolithic polyHIPE columns were prepared by in situ polymerization of the continuous phase of a high internal phase emulsion (HIPE) containing styrene (STY), divinylbenzene (DVB) and glycidyl methacrylate (GMA) in pipette tips, and the resulting STY/DVB/GMA polyHIPE monoliths exhibited highly interconnected porosity and large surface areas, making them excellent candidates as adsorbents for enrichment of trace aromatic compounds. The prepared STY/DVB/GMA polyHIPE monoliths were applied to the determination of trace PAHs in environmental water samples by combing with high performance liquid chromatography-fluorescence detection (HPLC-FLD). Under the optimized experimental conditions, the polyHIPE monoliths could effectively enrich trace 13 PAHs from 500mL of water samples, the mean recoveries at four spiked levels were ranged from 80.7% to 115.0% with the relative standard deviations (RSDs) lower than 14%, and the detection limits (LODs) were ranged from 4.0 to 228pg/L. In addition, the prepared polyHIPE monolith was stable enough for more than 200 replicate extraction cycles without measurable loss of performance on the enrichment of PAHs, and good column-to-column repeatability was obtained with RSD less than 13%. The proposed method was applied to simultaneous analysis of 13 PAHs in water samples with satisfactory recoveries.
authors.affiliation: Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China.
authors.forename: Rihui
authors.initials: R
authors.lastname: Su
authors.affiliation: Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China. Electronic address: guihuaruan@hotmail.com.
authors.forename: Guihua
authors.initials: G
authors.lastname: Ruan
authors.affiliation: Analytical Instrumentation Center, Peking University, Beijing 100871, China.
authors.forename: Honggang
authors.initials: H
authors.lastname: Nie
authors.affiliation: Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Xie
authors.affiliation: Shenzhen Academy of Metrology and Quality Inspection, Shenzhen 518131, China.
authors.forename: Yanjie
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China. Electronic address: dufu2005@126.com.
authors.forename: Fuyou
authors.initials: F
authors.lastname: Du
authors.affiliation: Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China.
authors.forename: Jianping
authors.initials: J
authors.lastname: Li
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004655:Emulsions; D004852:Epoxy Compounds / Q000737:chemistry; D005618:Fresh Water / Q000737:chemistry*; D057230:Limit of Detection; D008689:Methacrylates / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D052616:Solid Phase Extraction / Q000379:methods; D020058:Styrene / Q000737:chemistry; D014753:Vinyl Compounds / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D004655:Emulsions; D004852:Epoxy Compounds; D008689:Methacrylates; D011084:Polycyclic Aromatic Hydrocarbons; D011108:Polymers; D014753:Vinyl Compounds; D014874:Water Pollutants, Chemical; D020058:Styrene; C004985:divinyl benzene; C007870:glycidyl methacrylate
keywords: High internal phase emulsion; Liquid chromatography–fluorescence detection; Monolithic column; Polycyclic aromatic hydrocarbons; Solid-phase extraction