title: Analysis of polycyclic aromatic hydrocarbons in water with gold nanoparticles decorated hydrophobic porous polymer as surface-enhanced Raman spectroscopy substrate.
abstract: A method for surface-enhanced Raman spectroscopy (SERS) sensing of polycyclic aromatic hydrocarbons (PAHs) is reported. Gold nanoparticles (AuNPs) decorated hydrophobic porous glycidyl methacrylate-ethylene dimethacrylate (GMA-EDMA) polymer is developed as the SERS substrate. GMA-EDMA material with porosity and permeability shows rapid and efficient adsorption of PAHs through presumed hydrophobic interaction, which brings the analytes close to the substrate. Meanwhile, the three dimensional porous morphology might benefit AuNPs distribution for high SERS enhancement. Studies on the effects of AuNPs surface coverage on the substrate and time of PAHs-substrate interaction are presented. The qualitative analysis and quantitative tendency of this method for PAHs detection are investigated with anthracene, phenanthrene and pyrene as probe molecules, showing that the characteristic fingerprint vibrational peaks of each PAH can be readily identified, and the limit of detections are 0.93×10(-7), 4.5×10(-7) and 1.1×10(-7) M respectively. Moreover, the substrate exhibits high reproducibility with the relative standard deviation about 16% in spot and spot SERS intensity. Using this method for rapid screening of PAHs mixture in some water samples are performed well, which might be useful for environmental pollutions monitoring.
authors.affiliation: Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Biological Engineering, Heilongjiang Agricultural and Technical College, Jiamusi, Heilongjiang Province 154007, PR China.
authors.forename: Weimin
authors.initials: W
authors.lastname: Hao
authors.affiliation: Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China.
authors.forename: Han
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China.
authors.forename: Yingcheng
authors.initials: Y
authors.lastname: Pan
authors.affiliation: Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Kang
authors.affiliation: Chinese Academy of Inspection and Quarantine, Beijing 100123, PR China.
authors.forename: Xiaofang
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Chinese Academy of Inspection and Quarantine, Beijing 100123, PR China.
authors.forename: Mingqiang
authors.initials: M
authors.lastname: Zou
authors.affiliation: Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China.
authors.forename: Peijin
authors.initials: P
authors.lastname: Tong
authors.affiliation: Shanghai Key Laboratory of Functional Materials Chemistry & Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, PR China. Electronic address: yipingdu@ecust.edu.cn.
authors.forename: Yiping
authors.initials: Y
authors.lastname: Du
mesh_terms: D000873:Anthracenes / Q000032:analysis; D003102:Colloids / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D011108:Polymers / Q000737:chemistry*; D016062:Porosity; D015203:Reproducibility of Results; D013059:Spectrum Analysis, Raman; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D000873:Anthracenes; D003102:Colloids; D011084:Polycyclic Aromatic Hydrocarbons; D011108:Polymers; D014874:Water Pollutants, Chemical; D014867:Water; D006046:Gold; C034020:anthracene
keywords: Glycidyl methacrylate–ethylene dimethacrylate material; Gold nanoparticles; Polycyclic aromatic hydrocarbons; Surface-enhanced Raman spectroscopy