Journal
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 70, Issue 1, Pages 54-65Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.70.54
Keywords
veterinary drugs; residual analysis; simultaneous determination; liquid chromatography coupled with electrospray ionization tandem; mass spectrometry (LC/MS/MS); muscle
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A simple and rapid method using liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC/MS/MS) for the simultaneous determination of 130 veterinary drugs and their metabolites in bovine, porcine, and chicken muscle was developed. The drugs (1 to 10 ng/g, in muscle) were extracted from bovine, porcine, or chicken muscles with acetonitrile-methanol (95:5, v/v), and the extracts were delipidated with n-hexane saturated with acetonitrile. The extracts were evaporated, dissolved with methanol, analyzed by liquid chromatography with gradient elution on a C-18 column, and determined by electrospray ionization tandem mass spectrometry. The detection limits ranged from 0.03 to 3 ng/g. The quantitation limits ranged from 0.1 to 10ng/g. One hundred eleven, 122, and 123 drugs from bovine, porcine, and chicken muscle respectively showed recoveries between 70 and 110%.
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