One-step liquid chromatographic method for the determination of oxytetracycline in fish muscle

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Rosie CoyneOle Bent Samuelsen

Abstract

A one-step simple and rapid high performance liquid chromatography (HPLC) method was developed for the determination of oxytetracycline (OTC) in fish tissue. The method involves liquid extraction of muscle tissue, precipitation of proteins and reversed phase HPLC analysis with spectrophotometric detection. The limit of quantitation of OTC in spiked fish muscle was 0.04 microg/g and the method showed high linearity (r(2) = >0.999) in the working range of 0.04-2 microg/g. The precision (%R.S.D.) was between 1.9 and 7.5% for the concentration range 0.04-1.0 microg/g and there was no significant difference between the concentrations determined on three different test days for all four spiked concentrations. The percentage recovery over the spiked concentration range 0.04-1.0 microg/g was consistently within a narrow range of 33-35%. While the method had the advantage of high precision, sensitivity and linearity, the method's additional salient advantages included high sample through-put (60 individual preparations per day) and minimum amount of consumables, time and labour required to perform the analysis. The method was successfully applied to a pharmacokinetic study.

References

Jul 1, 1987·Food Additives and Contaminants·I NordlanderB Osterdahl
Feb 1, 1981·Journal of Pharmaceutical Sciences·C van den Bogert, A M Kroon
Jul 15, 2000·Journal of Chromatography. a·H OkaH Matsumoto

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Citations

Nov 11, 2008·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Dimitrios J FletourisDimitrios S Nakos
Mar 8, 2008·Journal of Pharmaceutical and Biomedical Analysis·P Kowalski
Oct 11, 2007·Journal of Separation Science·Victoria F Samanidou, Evaggelia N Evaggelopoulou
Jun 18, 2009·Analytical and Bioanalytical Chemistry·F Cañada-CañadaA Espinosa-Mansilla

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