LC method for the analysis of kanamycin residue in swine tissues using derivatization with 9-fluorenylmethyl chloroformate

J Sep Sci. 2009 Nov;32(21):3620-6. doi: 10.1002/jssc.200900408.

Abstract

A sensitive and robust HPLC method was developed for the determination of kanamycin (Kan) in swine tissues. Kan was extracted from tissue with 10% TCA (w/v) solution and cleaned up with MCX SPE column. The purified extract was derivatized with 9-fluorenylmethyl chloroformate, and then separated on a C18 column and detected by a fluorescence detector. The linear range of the calibration curve was 0.025-1 microg/mL with R(2) of 0.9998. The limits of quantification were determined to be 0.1 mg/kg in muscle, 0.2 mg/kg in liver, and 0.6 mg/kg in kidney, and the average recoveries of Kan from swine tissues at different fortification levels (0.1-0.4 mg/kg for muscle, 0.2-1.2 mg/kg for liver, and 0.6-5.0 mg/kg for kidney) ranged from 80.7 to 91.3% with intraday and interday coefficient of variations less than 12.1%. The validated method was successfully applied to determine Kan in incurred samples, indicating that it can be used as a routine tool for the surveillance of Kan residue in swine tissues.

Publication types

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

MeSH terms

  • Animals
  • Anti-Bacterial Agents / analysis*
  • Anti-Bacterial Agents / pharmacokinetics
  • Chromatography, High Pressure Liquid / methods*
  • Drug Residues / analysis*
  • Fluorenes / chemistry*
  • Kanamycin / analysis*
  • Kanamycin / pharmacokinetics
  • Kidney / chemistry
  • Limit of Detection
  • Liver / chemistry
  • Muscles / chemistry
  • Swine
  • Tissue Distribution

Substances

  • Anti-Bacterial Agents
  • Fluorenes
  • Kanamycin
  • 1-(9-fluorenyl)methyl chloroformate