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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Single-step extraction followed by LC for determination of (fluoro)quinolone drug residues in muscle, eggs, and milk
Journal of Separation Science, Volume 33, No. 8, Year 2010
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Description
In this study, a simplified method for the extraction and determination of seven fluoroquinolone residues (danofloxacin, difloxacin, enrofloxacin, marbofloxacin, orbifloxacin, ofloxacin, and sarafloxacin) and three quinolones (oxolinic acid, flumequine, and nalidixic acid), in porcine muscle, table eggs, and commercial whole milk, which required no cleanup step, was devised. This procedure involves the extraction of analytes from the samples via liquid-phase extraction, and the subsequent quantitative determination was accomplished via LC-fluorescence detection. Analyte separation was successfully Conducted on an XBridge-C18 column, with a linear gradient mobile Phase composed of acetonitrile and 0.01M oxalic acid buffer at pH53.5. The one-step liquid-liquid extraction method evidenced good selectivity, precision (RSDs50.26-15.07%), and recovery of the extractable analytes, ranging from 61.12 to 115.93% in matrices. The LOQs ranged from 0.3 to 25 μg/kg. A survey of ten samples purchased from local markets was conducted, and none of the samples harbored fluoroquinolone residues. This method is an improvement over existing methodologies, since no additional cleanup was necessary. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.
Authors & Co-Authors
Cho, Hee-jung
South Korea, Seoul
Konkuk University
Yi, Hee
South Korea, Seoul
Konkuk University
Cho, Soo Min
South Korea, Seoul
Konkuk University
Lee, Dong-goo
South Korea, Seoul
Konkuk University
Cho, Kyul
South Korea, Seoul
Konkuk University
Abd El-Aty, A. M.
South Korea, Seoul
Konkuk University
Egypt, Giza
Faculty of Veterinary Medicine
Shim, Jae-Han
South Korea, Gwangju
Chonnam National University
Lee, Soonho
South Korea, Seoul
Food and Drug Administration of Korea
Jeong, Jiyoon
South Korea, Seoul
Food and Drug Administration of Korea
Shin, Ho-chul
South Korea, Seoul
Konkuk University
Statistics
Citations: 26
Authors: 10
Affiliations: 4
Identifiers
Doi:
10.1002/jssc.200900772
ISSN:
16159306
e-ISSN:
16159314
Study Design
Cross Sectional Study
Study Approach
Quantitative