[Rapid determination of residues of 4 tetracyclines in meat by a microbiological screening, HPLC and LC/MS/MS]

Shokuhin Eiseigaku Zasshi. 2008 Feb;49(1):37-44. doi: 10.3358/shokueishi.49.37.
[Article in Japanese]

Abstract

A rapid and precise determination residues of 4 tetracyclines (TCs) (oxytetracycline (OTC), tetracycline (TC), chlortetracycline (CTC) and doxycycline (DOXY)) in meat was developed by employing three analyses; a microbiological screening, HPLC and LC/MS/MS. TCs were extracted with pH 4.0 McIlvaine buffer containing 0.01 mol/L EDTA from a meat sample, and then purified using a mixed mode, reversed-phase and cation-exchange cartridge. The mean recoveries (n=5) of 0.2 microg/g OTC, TC and CTC, 0.05 microg/g DOXY spiked in meat samples were 76.6-99.0% (C.V. 1.6-5.4%). In 13 meat samples in which the microbiological screening indicated the presence of TCs, CTC (9 samples) and DOXY (4 samples) were identified with HPLC and LC/MS/MS.

Publication types

  • English Abstract

MeSH terms

  • Animals
  • Bacteriological Techniques
  • Cattle
  • Chickens
  • Chlortetracycline / analysis
  • Chromatography, High Pressure Liquid / methods*
  • Chromatography, Liquid / methods*
  • Doxycycline / analysis
  • Meat / analysis*
  • Oxytetracycline / analysis
  • Swine
  • Tandem Mass Spectrometry / methods*
  • Tetracyclines / analysis*

Substances

  • Tetracyclines
  • Doxycycline
  • Chlortetracycline
  • Oxytetracycline