title: Preparation of Fe3O4@C@PANI magnetic microspheres for the extraction and analysis of phenolic compounds in water samples by gas chromatography-mass spectrometry.
abstract: In this work, core-shell structure Fe(3)O(4)@C@polyaniline magnetic microspheres were synthesized using simple hydrothermal reactions. The carbon-coated magnetic microspheres (Fe(3)O(4)@C) were first synthesized by a hydrothermal reaction, and then aniline was polymerized on the magnetic core via another hydrothermal reaction. Then, the obtained Fe(3)O(4)@C@polyaniline magnetic microspheres were applied as magnetic adsorbents for the extraction of aromatic molecules due to π-π interactions between polyaniline shell and aromatic compounds. In our study, five kinds of phenols including phenol, 2,4-dichlorophenol (DCP), 2,4,5-trichlorophenol (TCP), pentachlorophenol (PCP) and bisphenol A (BPA) were selected as the model analytes to verify the extraction ability of Fe(3)O(4)@C@PANI microspheres. After derivatization, the phenols were detected using gas chromatography-mass spectrometry (GC-MS). The dominant parameters affecting enrichment efficiency were investigated and optimized. Under the optimal conditions, the proposed method was evaluated, and applied to the analysis of phenols in real water samples. The results demonstrated that our proposed method based on Fe(3)O(4)@C@polyaniline magnetic microspheres had good linearity (r(2)>0.991), and limits of quantification (2.52-29.7 ng/mL), high repeatability (RSD<13.1%) and good recovery (85.3-110.6%).
authors.affiliation: Department of Chemistry, Fudan University, Shanghai, China.
authors.forename: Jiaoran
authors.initials: J
authors.lastname: Meng
authors.forename: Chenyi
authors.initials: C
authors.lastname: Shi
authors.forename: Biwen
authors.initials: B
authors.lastname: Wei
authors.forename: Wenjia
authors.initials: W
authors.lastname: Yu
authors.forename: Chunhui
authors.initials: C
authors.lastname: Deng
authors.forename: Xiangmin
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry*; D001559:Benzhydryl Compounds; D002733:Chlorophenols / Q000032:analysis / Q000302:isolation & purification; D004574:Electromagnetic Fields; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D016014:Linear Models; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D019800:Phenol / Q000032:analysis / Q000302:isolation & purification; D010636:Phenols / Q000032:analysis* / Q000302:isolation & purification; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000302:isolation & purification; D000098826:Bisphenol A Compounds
chemical_list: D000814:Aniline Compounds; D001559:Benzhydryl Compounds; D002733:Chlorophenols; D058185:Magnetite Nanoparticles; D019800:Phenol; D010636:Phenols; D014867:Water; D014874:Water Pollutants, Chemical; C416807:polyaniline; C006780:bisphenol A; D000098826:Bisphenol A Compounds