Abstract
Chloramphenicol (CAP), ciprofloxacin (CIP), nitrofuran antibiotics (NFA) and their metabolites in fishery products were determined simultaneously by a simple method with capillary electrophoresis. The optimal buffer consisted of 20 mmol L−1 sodium dihydrogen phosphate, 20 mmol L−1 disodium hydrogen phosphate, 80 mmol L−1 sodium deoxycholate, and 10 % methanol (v/v), pH 9.0. Under the best conditions, all analytes were separated completely. The method presented good linearity (r ≥ 0.9997) for CAP, CIP and NFA in the range of 5–100 μg mL−1, and for nitrofuran metabolites in the range of 1–25 μg mL−1. The limit of detection for each compound was estimated as 0.3–1.5 μg kg−1 (S/N = 3) in fishery products. The recoveries ranged from 81.5 to 114.5 %. Finally, the method was applied to real food samples, but neither antibiotics nor metabolites were found.
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The authors gratefully acknowledge Financial support from the National Natural Science Foundation of China (NSFC, Grant No. 21005021) and Guangdong Provincial Science and Technology Project (No. 2010B020316010 and No. 2013B040402010).
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Zhai, H., Zhang, L., Pan, Y. et al. Simultaneous Determination of Chloramphenicol, Ciprofloxacin, Nitrofuran Antibiotics and their Metabolites in Fishery Products by CE. Chromatographia 78, 551–556 (2015). https://doi.org/10.1007/s10337-015-2864-4
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DOI: https://doi.org/10.1007/s10337-015-2864-4