“…Chlorobenzenes are a kind of organic chemical raw material and are mainly used as intermediates in dyestuffs, medicines, pesticides and in organic synthesis, as they carry the disadvantages of not being easy to degrade and of being harmful to the environment [ 1 , 2 ]. There is a great need to develop low-cost, easy-operation, high-efficiency, environmentally protective techniques for the separation of trace chlorobenzenes compounds in water samples, due to their toxicity, environmental damage potential, and the fact that they pose a great threat to human health [ 3 ]. Until now, many pretreatment methods have been developed for the separation of chlorobenzenes from environmental water, including solid-phase extraction (SPE), solid-phase microextraction (SPME), liquid–liquid extraction (LLE), and single-drop microextraction (SDME) [ 4 , 5 ].…”