FOOD SCIENCE ›› 2013, Vol. 34 ›› Issue (10): 180-183.doi: 10.7506/spkx1002-6630-201310039

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Simultaneous Determination of 3 Tetracycline Residues in Chicken Tissues by High-Performance Liquid Chromatography

GE Yun-zhi,YU Xiao-bo,ZHOU Guang-hong*,XU Xing-lian   

  1. Key Laboratory of Meat Processing and Quality Control, Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2012-03-02 Revised:2013-04-10 Online:2013-05-25 Published:2013-05-07
  • Contact: Yun-zhi GE E-mail:2010108059@njau.edu.cn

Abstract:

A simultaneous high performance liquid chromatography (HPLC) method was developed for the determination
of 3 tetracycline residues in chicken tissues. Chicken tissue samples were extracted with citrate buffer (pH 4) and 20% TCA,
and clean-up on C-18E solid phase (SPE) cartridge. Chromatographic separation was performed on a C18 column with a mobile
phase consisting of acetonitrile and methanol and oxalic acid at a flow rate of 1.0 mL/min by gradient elution. Detection
wavelength was 351 nm and external standard method was used for quantification. The calibration curves of 3 tetracyclines
exhibited good linearity with correlation coefficients of 0.99. The average recovery rate for 3 tetracyclines in chicken tissues
spiked at 500 μg/kg varied from 86.2% to 89.3%, with relative standard deviations between 0.854% and 1.213% (n = 10).
The limit of quantification was 10 μg/kg.

Key words: chicken tissue, tetracycline, oxytetracycline, chlorotetracycline, high performance liquid chromatography

CLC Number: