Identification of a flunixin metabolite in camel by gas chromatography–mass spectrometry |
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Authors: | IA Wasfi AAA Hadi Nawal A Alkatheeri Ishar M Barezaiq M ElGhazali NS Boni O Zorob |
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Institution: | Camelracing Forensic Laboratory, Forensic Science Laboratory, P.O. Box 253, Abu Dhabi, United Arab Emirates |
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Abstract: | A flunixin metabolite, a hydroxylated product, has been identified in camel urine and plasma samples using gas chromatography–mass spectrometry (GC–MS) and GC–MS–MS in the electron impact and chemical ionization modes. Its major fragmentation pattern has been verified by GC–MS–MS in daughter ion and parent ion scan modes. The method could detect flunixin and its metabolite in camel urine after a single intravenous dose of 2.2 mg of flunixin/kg body weight for 96 and 48 h, respectively, which increases the reliability of antidoping control analysis. |
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Keywords: | Flunixin |
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