Residue analysis of tetracyclines in milk by HPLC coupled with hollow fiber membranes-based dynamic liquid-liquid micro-extraction

Food Chem. 2017 Oct 1:232:198-202. doi: 10.1016/j.foodchem.2017.04.021. Epub 2017 Apr 5.

Abstract

A novel hollow fiber membranes-based dynamic liquid-liquid micro-extraction (HF-DLLME) coupled with HPLC-UV detection has been developed for the residue analysis of tetracyclines in milk samples without deproteinization and degreasing. The influences of experimental parameters were investigated and optimized. The method showed a good performance. The limits of detection (LOD) are in the range of 0.95-3.6μg/L. The recoveries in spiked samples range from 92.38 to 107.3%. The relative standard deviations (RSDs) are lower than 8.66%. The advantages of this method are simple operation, high efficiency, absence of sample carryover and low cost.

Keywords: Chlorotetracycline (PubChem CID: 54675777); Doxycycline (PubChem CID: 54671203); Dynamic liquid-liquid micro-extraction; Hollow fiber membrane; Ionic liquid; Milk; Oxytetracycline (PubChem CID: 54675779); Tetracycline (PubChem CID: 54675776); Tetracyclines.

MeSH terms

  • Animals
  • Chromatography, High Pressure Liquid
  • Food Analysis
  • Food Contamination
  • Liquid Phase Microextraction
  • Liquid-Liquid Extraction
  • Milk*
  • Tetracyclines*

Substances

  • Tetracyclines