Abstract
HPLC (High Performance Liquid Chromatography) method for chloramphenicol residues in freshwater fish was developed. The samples were extracted with ethyl acetate. The LC was performed on a C18 column, mobile phase consisted of methanol-water (45:55 v/v) and eluted at 0.2mL/min at 20°C, inject volume was 20μl. The linear rang for chloramphenicol residual is within 0.5-20μg/mL, the limit of detection is 0.01ng/g. The average recovery is 80.06%-92.71%, and the RSD is 1.46%-5.61%. This method is employed to analyze freshwater fishes, such as catfish, chub and carp.
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