Compared with SPME, the optimized SDE, when used to detect residue of organochlorine pesticides in honey samples, can not only dismiss the influence of background and the purification process, but also lower the LOD of DDT.

• 与SPME相比，优化后的SDE在检测蜂蜜中有机氯农药残留时不仅可忽略蜂蜜溶液中基体的干扰，省去样品净化过程，而且还具有降低滴滴涕的检出限和省钱的优点。