Simultaneous determination of six synthetic phenolic antioxidants in edible oils using dispersive liquid-liquid microextraction followed by high-performance liquid chromatography with diode array detection

文献类型： 外文期刊

第一作者： Shuangjiao Xu;;Liangliang Liu

作者： Shuangjiao Xu;Liangliang Liu;Yanqin Wang;Dayun Zhou;Meng Kuang;Dan Fang;Weihua Yang;Shoujun Wei;Aiping Xiao;Lei Ma

作者机构：

关键词： Dispersive liquid-liquid microextraction;Edible oil analysis;High-performance liquid chromatography;Synthetic phenolic antioxidants

期刊名称：JOURNAL OF SEPARATION SCIENCE （ 影响因子：3.645； 五年影响因子：2.943 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： A simple, rapid, organic-solvent- and sample-saving pretreatment technique, called dispersive liquid-liquid microextraction, was developed for the determination of six synthetic phenolic antioxidants from edible oils before high-performance liquid chromatography with diode array detection. The entire procedure was composed of a two-step microextraction and a centrifugal process and could be finished in about 5 min, only consuming only 25 mg of sample and 1 mL of the organic solvent for each extraction. The influences of several important parameters on the microextraction efficiency were thoroughly investigated. Recovery assays for oil samples were spiked at three concentration levels, 50, 100 and 200 mg/kg, and provided recoveries in the 86.3-102.5% range with a relative standard deviation below 3.5%. The intra-day and inter-day precisions for the analysis were less than 3.8%. The proposed method was successfully applied for the determination of synthetic phenolic antioxidants in different oil samples, and satisfactory results were obtained. Thus, the developed method represents a viable alternative for the quality control of synthetic phenolic antioxidant concentrations in edible oils.

分类号： O6

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