期刊
JOURNAL OF SEPARATION SCIENCE
卷 38, 期 3, 页码 418-425出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201400634
关键词
Clenbuterol; Derivatization; Gas chromatography with mass spectrometry; Meat products; Solid-phase microextraction
A method was developed for the determination of clenbuterol in meat using stable-isotope-dilution gas chromatography with mass spectrometry coupled with solid-phase microextraction and on-fiber derivatization. The samples were first homogenized with hydrochloric acid followed by protein deposition. After headspace solid-phase microextraction and on-fiber derivatization, the content of clenbuterol was measured with the aid of stable-isotope dilution. The condition of solid-phase microextraction was optimized by central composite design. The relative standard deviations, limit of detection, and recoveries for clenbuterol were 4.2-9.2%, 0.48 mu g/kg, and 96-104%, respectively. The proposed method was satisfactory for analysis of real samples as compared with the Chinese standard method.
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