数字农科院2.0

Determination of 2-Dodecylcyclobutanone in Irradiated Beef by Direct Solvent Extraction and Gas Chromatography-Mass Spectrometry

文献类型： 外文期刊

作者： Zhao Yue-Liang;Wang Feng;Zhou Hong-Jie;Li Wei-Ming;Li An;Liu Hai-Jing;Ha Yi-Ming

作者机构：

关键词： 2-Dodecyclobutanone;Irradiated beef;Direct solvent extraction;Gas chromatographymass spectrometry

期刊名称： CHINESE JOURNAL OF ANALYTICAL CHEMISTRY

ISSN： 0253-3820

年卷期： 2012 年 40 卷 12 期

页码：

收录情况： SCI

摘要： The repeated for two times. Then, the extraction solutions were evaporated to dryness using a rotary evaporator. The round-bottom flask was washed with hexane, and the solution was collected into a 50 mL volumetric flask. The 10 mL hexane aliquot was dried to 1 mL via nitrogen stream and then purified with a silica cartridge (1 g, 6 mL). The elution was concentrated to 1 mL with a nitrogen stream, and 1 iL was injected into the gas chromatography-mass spectrometer. The limit of detection and quantitation was 0. 004 and 0. 01 mg/kg, respectively. The procedure was evaluated with a recovery test in six samples spiked with 2-DCB at 0.01 and 0. 5mg/kg of ground beef, resulting in 87. 9 yo -91. 6% recoveries with mostly less than 7% RSD. The operation time for sample preparation was about 60 to 90 min. The method was used to detect 2-DCB in ground beef irradiated at 5 targeted absorbed doses of 0. 5, 1. 0, 3. 0, 5. 0 and 7. 0 kGy and the concentration of 2-DCB increased linearly with dose (y=0. 0608x-0. 0004, R-2=0. 9899).

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