文献类型： 外文期刊
作者： Li, An 1 ; Pan, Li-Gang 1 ; Zhang, Xiu-Tong 1 ; Jin, Xin-Xin 1 ; Ma, Hong-Zao 1 ;
作者机构： 1.Beijing Res Ctr Agr Stand & Testing, Beijing 100097, Peoples R China
2.Minist Agr PR China, Risk Assessment Lab Agroprod Beijing, Beijing 100097, Peoples R China
关键词： 2-Dodecylcyclobutanone;Irradiation;Accelerated solvent extraction;Pork;Neutral alumina
期刊名称：RADIATION PHYSICS AND CHEMISTRY （ 影响因子：2.858； 五年影响因子：2.411 ）
ISSN：
年卷期：
页码：
收录情况： SCI
摘要： 2-Dodecylcyclobutanone (2-DCB) is validated as a marker for irradiated foodstuffs. However, the preparation methods for the marker compound involve time-consuming and tedious procedures prior to analysis. This paper describes a rapid method for the extraction and cleanup of 2-DCB in irradiated pork. The highly automated extraction procedure is based on accelerated solvent extraction combined with a purification step by Al2O3, which is added to the extraction cell. The overall extraction time is less than 20 min, and the volume of the solvent is 1.5 times that of the extraction cell (34 mL). The recovery of 2-DCB from pork samples for this method is higher than 75%. The method allows detecting pork irradiated at low doses (0.5 kGy). The proposed method is considered an alternative to the Soxhlet extraction and Florisil chromatography method currently in use. (C) 2016 Elsevier Ltd. All rights reserved.
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