Magnetic solid-phase extraction based on graphene oxide for the determination of lignans in sesame oil

卷:217

Wu, Linxia ; Yu, Li ; Ding, Xiaoxia ; Li, Peiwu ; Dai, Xianhong ; Chen, Xiaomei ; Zhou, Haiyan ; Bai, Yizhen ; Ding, Jian

Chinese Acad Agr Sci

关键词: Magnetic solid-phase extraction;    Sesamol;    Sesamin;    Sesamolin;    High performance liquid chromatography;   

DOI  :  10.1016/j.foodchem.2016.08.109

学科分类：食品科学和技术

【 摘 要 】

Graphene oxide was fabricated by a simple method and applied to magnetic solid-phase extraction. In a pretreatment procedure before the sesamol, sesamin and sesamolin in sesame oil were detected by high performance liquid chromatography. Several parameters affecting the extraction efficiency were investigated, including the type and volume of desorption solvent, desorption time and the amount of sorbent. Under the optimized conditions, the detection limits of sesamol, sesamin, and sesamolin were 0.05 mu g/g, 0.02 mu g/g, and 0.02 mu g/g, respectively. The limits of quantification were all 0.21 mu g/g. The average recoveries of sesamol, sesamin, and sesamolin were 84.55%, 85.47%, 86.83%, respectively and their relative standard deviations were 1.23%, 1.33%, and 0.84%, respectively. (C) 2016 Published by Elsevier Ltd.