Simultaneous Determination of Fluoroquinolones and Sulfonamides in Chicken Muscle by LC with Fluorescence and UV Detection |
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Authors: | Cun Li Hai-Yang Jiang Si-Jun Zhao Su-Xia Zhang Shuang-Yang Ding Jian-Cheng Li Xiao-Wei Li Jian-Zhong Shen |
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Affiliation: | 1. Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, 100094, People’s Republic of China 3. Department of Veterinary Medicine, College of Agriculture, Hebei University of Engineering, Handan, 056038, People’s Republic of China 2. National Reference Laboratories for Veterinary Drug Residue, District Haidian, Beijing, 100094, People’s Republic of China
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Abstract: | A simple, rapid and sensitive liquid chromatographic method with programmable fluorescence and ultraviolet detection was developed and validated for simultaneous determination of seven fluoroquinolones (marbofloxacin, ofloxacin, ciprofloxacin, lomefloxacin, danofloxacin, enrofloxacin and difloxacin) and four sulfonamides (sulfadiazine, sulfapyridine, sulfathiazole and sulfadimidine) in chicken muscle in a single run. The tissue sample was extracted with phosphate buffer (pH 6.0) and cleaned-up with a solid phase extraction cartridge. The mean recoveries for each drug in chicken muscle ranged from 78.0 to 105.2% with a relative standard deviation below 9.3% at 0.2–400 ng g?1 fortification levels. The limit of quantification was 0.2–4.0 ng g?1 for fluoroquinolones and 15.0 ng g?1 for sulfonamides. |
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