Preparation of Fe3O4-C18 nano-magnetic composite materials and their cleanup properties for organophosphorous pesticides

Anal Bioanal Chem. 2007 Mar;387(6):2227-37. doi: 10.1007/s00216-006-1082-1. Epub 2007 Jan 13.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chromatography, Gas
  • Hydrocarbons / chemistry*
  • Iron Compounds / chemistry*
  • Magnetics*
  • Microscopy, Electron, Transmission
  • Molecular Structure
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure
  • Oxides / chemistry*
  • Pesticides / chemistry*
  • Phosphorus / chemistry*
  • X-Ray Diffraction

Substances

  • Hydrocarbons
  • Iron Compounds
  • Oxides
  • Pesticides
  • Phosphorus