Preparation of Fe3O4-C18 nano-magnetic composite materials and their cleanup properties for organophosphorous pesticides.
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.
Shen
Hao-Yu
HY
Analysis and Testing Center, Ningbo Institute of Technology, Zhejiang University, 1st Qianhu Nan Road, Ningbo, Zhejiang, 315100, China. haoyushen2000@yahoo.com
Zhu
Yong
Y
Wen
Xia-Er
XE
Zhuang
Yu-Miao
YM
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
D006838:Hydrocarbons; D058085:Iron Compounds; D010087:Oxides; D010575:Pesticides; D010758:Phosphorus