Journal
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
Volume 30, Issue 6, Pages 940-948Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/19440049.2013.780210
Keywords
multi-residue; fish; antibiotics; LC-MS/MS
Funding
- Ministry of Science and Higher Education (NCBIR) [NR12-0127-10]
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A multi-residue method for the determination of 34 antibacterial drugs (three aminoglycosides, nine -lactams, nine fluoroquinolones, three macrolides, five sulfonamides, trimethoprim and four tetracyclines) in fish samples by LC-MS/MS was developed. The procedure enables the isolation of residues based on double extraction of the fish sample with m-phosphoric acid and heptafluorobutyric acid as an ion-pair agent and acetonitrile. All compounds were determined at the same time on a C18 column with gradient elution. The method was validated according to the requirements of European Decision 2002/657/EC. Specificity, recovery, repeatability, within-laboratory reproducibility, decision limit CC and detection capability CC were calculated. CC ranged from 55.3 to 1085 mu gkg(-1) and CC ranged from 59.5 to 1141 mu gkg(-1). The overall recoveries were from 96% to 111% with respect to the internal standards.
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