Development of an antibody hapten-chip system for detecting the residues of multiple antibiotic drugs

J Forensic Sci. 2009 Jul;54(4):953-60. doi: 10.1111/j.1556-4029.2009.01049.x. Epub 2009 Apr 17.

Abstract

The abuse of antibiotic drugs during animal production remains a worldwide problem and the subsequent detection of the residues of various drugs present at low concentrations in complex biological matrices poses significant analytical challenges. The present study outlines a practical biochip assay system to identify antibiotic residues in different animal tissue extracts. The system uses a simple but efficient multiresidue sample extraction procedure to isolate the antibiotic residues which were then identified directly using high-affinity monoclonal antibodies presented in a competitive immunoassay with conjugated antibiotic hapten-chips. The hapten-chip can analyze six samples each for eight antibiotics on a single chip within 3 h. The analytical results with both artificial positive standard samples and the incurred samples show that the antibody hapten-chip system has a comparable accuracy and a similar sensitivity to a standard ultra performance liquid chromatography-mass spectrometry (MS)/MS assay. In conclusion, an effective analytical screening system based on antibody hapten-chip was developed for detecting multiple antibiotic residues from multiple samples.

MeSH terms

  • Animals
  • Anti-Bacterial Agents / analysis*
  • Antibodies, Monoclonal
  • Chickens
  • Chromatography, Liquid
  • Drug Residues*
  • Haptens / immunology*
  • Immunoassay / methods*
  • Liver
  • Mass Spectrometry
  • Meat Products
  • Muscle, Skeletal
  • Swine
  • Tissue Array Analysis*

Substances

  • Anti-Bacterial Agents
  • Antibodies, Monoclonal
  • Haptens