A high-throughput method for determining chloramphenicol residues in poultry, egg, shrimp, fish, swine and bovine
Silvia Regina Rocha Siqueira1, José Luiz Donato, Gilberto de Nucci
1Galeno Research Unit, Parque Taquaral, Campinas, SP, Brazil.
Abstract:
A LC-ESI-MS/MS method for determining chloramphenicol residues in fish, shrimp, poultry, eggs, bovine and swine was developed and validated. The samples were extracted with a phosphate extraction solution followed by liquid-liquid extraction with ethyl acetate. The LC was performed on a C18 column at room temperature. For all the matrices, the analytical curves showed r values and recoveries higher than 0.99 and 50%, respectively. The accuracy values lay between 85 and 120% and the precision was lower than 20%. The LOQ was 0.1 ng/g. The method was employed to analyze samples collected in Brazil.
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