title: Preparation of Fe3O4-C18 nano-magnetic composite materials and their cleanup properties for organophosphorous pesticides.
abstract: Magnetic Fe3O4-C18 composite nanoparticles of approximately 5-10 nm in size were synthesized and characterized by IR spectroscopy, atomic absorption spectroscopy, X-ray diffraction, and transmission electron microscopy. The magnetic Fe3O4-C18 composite nanoparticles were applied for cleanup and enrichment of organophosphorous pesticides. Comparative studies were carried out between magnetic Fe3O4-C18 composite nanoparticles and common C18 materials. Residues of organophosphorous pesticides were determined by gas chromatography in combination with a nitrogen/phosphorus detector. The cleanup and enrichment properties of magnetic Fe3O4-C18 composite nanoparticles are comparable with those of common C18 materials for enrichment of organophosphorous pesticides, but the cleanup and enrichment are faster and easier to perform.
authors.affiliation: Analysis and Testing Center, Ningbo Institute of Technology, Zhejiang University, 1st Qianhu Nan Road, Ningbo, Zhejiang, 315100, China. haoyushen2000@yahoo.com
authors.forename: Hao-Yu
authors.initials: HY
authors.lastname: Shen
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhu
authors.forename: Xia-Er
authors.initials: XE
authors.lastname: Wen
authors.forename: Yu-Miao
authors.initials: YM
authors.lastname: Zhuang
mesh_terms: D002849:Chromatography, Gas; D006838:Hydrocarbons / Q000737:chemistry*; D058085:Iron Compounds / Q000737:chemistry*; D008280:Magnetics; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D010575:Pesticides / Q000737:chemistry*; D010758:Phosphorus / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D006838:Hydrocarbons; D058085:Iron Compounds; D010087:Oxides; D010575:Pesticides; D010758:Phosphorus