中文摘要：

介绍近年来有关固相微萃取、超临界流体萃取、加速溶剂萃取等多环芳烃的预处理技术,并对这些技术自身的特点进行比较和归纳,总结展望多环芳烃预处理技术的发展。

英文摘要：

The recent progress in the sample pretreatment techniques for polycyclic aromatic hydrocarbons in environmental matrix was systematically reviewed.The features of these techniques were induced and compared,and future development of sample pretreatment techniques was presented.