Selective determination of melamine in aqueous medium by molecularly imprinted solid phase extraction

J Agric Food Chem. 2010 Nov 24;58(22):11883-7. doi: 10.1021/jf102936p. Epub 2010 Oct 22.

Abstract

A molecularly imprinted polymer able to recognize melamine in partially aqueous medium was synthesized using methacrylic acid as functional monomer and ethylene glycol dimethacrylate as cross-linking agent. The bound specificity and selectivity of the obtained material were verified by performing binding experiments with melamine and its structural analogue, 2,4,6-trimethoxy-1,3,5-triazine, respectively, using different aqueous binding media. Finally, the ability of MIP to selectively extract melamine from two real samples, a food supplement and a freeze-dried meat sample, was demonstrated.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Animals
  • Dietary Supplements / analysis
  • Food Contamination / analysis
  • Meat Products / analysis
  • Molecular Imprinting
  • Polymers / chemical synthesis
  • Polymers / chemistry*
  • Solid Phase Extraction / instrumentation
  • Solid Phase Extraction / methods*
  • Triazines / analysis
  • Triazines / isolation & purification*

Substances

  • Polymers
  • Triazines
  • melamine