油脂中多环芳烃检测前处理方法研究进展

Development of Sample Preparation of Polycyclic Aromatic Hydrocarbons in Edible Fats and Oils

综述了动植物油脂中多环芳烃分析中常用的前处理方法,传统的样品前处理方法包括提取(液液萃取、咖啡因络合提取、皂化提取)、净化(柱色谱净化、薄层色谱净化、固相萃取净化),步骤繁琐,费时费力,消耗溶剂多,因此新引入的凝胶色谱净化(GPC)系统及超临界萃取得到了快速的发展,两者均将提取、净化二合一,具有良好的应用前景。

The sample preparation of analytical methods for polycyclic aromatic hydrocarbon（ PAH） determination in oils and fats was reviewed. Traditional sample preparation relied on tedious,time-consuming procedures. They generally consisted of an extraction step（ liquid-liquid partition,caffeine complexation,saponification） followed by one or more purification procedures（ column chromatography,thin-layer chromatography,solid-phase extraction）. Therefore,the new introduced gel permeation chromatography（ GPC） system and supercritical fluid extraction（ SFE） were developed rapidly. The two methods allow performing both extraction and clean-up in one combined step and have a promising application.