Determination of Glucocorticoid Residues in Foods of Animal Origin by Liquid Chromatography-Tandem Mass Spectrometry
Objective:To detect the residues of glucocorticoids in animal-derived foods by liquid chromatography-tandem mass spectrometry.Method:After alkaline hydrolysis,the tissue samples were extracted with ethyl acetate.Using high performance liquid chromatography-tandem mass spectrometry analysis,using electrospray ion source,positive ion scanning.Result:The linear relationship of this method was good,the correlation coefficient was greater than 0.99,and the recovery rate was 72.95%～99.86%.Conclusion:This method can be used for the detection of glucocorticoid drug residues in animal-derived foods,which is simple,sensitive and accurate.
liquid chromatography-tandem mass spectrometryglucocorticoiddrug residues
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