Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 882, Issue 1-2, Pages 63-77Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0021-9673(00)00165-5
Keywords
food analysis; validation; quinolones; antibiotics
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A simple reversed-phase high-performance liquid chromatographic method was developed and validated for simultaneous analysis of nine quinolones (ciprofloxacin, danofloxacin, difloxacin, enrofloxacin, flumequine, marbofloxacin, nalidixic acid, oxolinic acid, sarafloxacin) in chicken tissue. The analytes were extracted from homogenized muscle using an acetonitrile basic solution. After centrifugation and partial evaporation, direct injection was possible. Three different HPLC conditions were applied to quantify the residual quinolones. Separation was achieved on a PLRP-S column and detection was performed with a monochromator fluorescence detector. The recovery, the limit of detection, the limit of quantification, the accuracy and the precision of the method were evaluated from spiked tissue samples at concentration levels ranging from 15 mu g kg(-1) to 300 mu g kg(-1) according to the maximum residue limit of each quinolone. This method is also suitable for porcine, bovine, ovine and fish muscle tissue. (C) 2000 Elsevier Science B.V. All rights reserved.
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