Wu Linxia, Yu Li, Ding Xiaoxia, Li Peiwu, Dai Xianhong, Chen Xiaomei, Zhou Haiyan, Bai Yizhen, Ding Jian
Institute of Oil Crops Research, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China; Laboratory of Risk Assessment for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China.
Institute of Oil Crops Research, Chinese Academy of Agricultural Sciences, Wuhan 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China; Laboratory of Risk Assessment for Oilseeds Products, Ministry of Agriculture, Wuhan 430062, China.
Food Chem. 2017 Feb 15;217:320-325. doi: 10.1016/j.foodchem.2016.08.109. Epub 2016 Aug 29.
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 0.05μg/g, 0.02μg/g, and 0.02μg/g, respectively. The limits of quantification were all 0.2μg/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.
氧化石墨烯通过一种简单的方法制备，并应用于磁性固相萃取。在芝麻油中芝麻酚、芝麻素和芝麻林素通过高效液相色谱检测之前的预处理过程中，研究了几个影响萃取效率的参数，包括解吸溶剂的类型和体积、解吸时间以及吸附剂的用量。在优化条件下，芝麻酚、芝麻素和芝麻林素的检测限分别为0.05μg/g、0.02μg/g和0.02μg/g。定量限均为0.2μg/g。芝麻酚、芝麻素和芝麻林素的平均回收率分别为84.55%、85.47%、86.83%，其相对标准偏差分别为1.23%、1.33%和0.84%。
