“…Therefore, monitoring organic pollutants in the environment is of great significance. However, determination of organic pollutants at trace levels often requires a sample preparation process, such as traditional LLE , SPE , SPME , dispersive liquid–liquid microextraction , pressurized liquid extraction , and stir bar sorptive extraction . Among these methods, SPE has received substantial attention because it is less time consuming, consumes less organic solvent and has higher enrichment factors compared with others .…”