A Natural Monoterpene Enol for Dispersive Liquid–Liquid Microextraction Based on Solidification of Floating Organic Droplets for Determination of Benzophenone Compounds in Water Samples

In the current study, an effective and simple procedure of extraction for four benzophenone compounds from water samples was achieved by dispersive liquid–liquid microextraction (DLLME) based on solidification floating organic droplets (SFO) with a natural monoterpene enol as extractant. As natural, high point, inexpensive, environmentally friendly hydrophobic solvent, α−terpineol selected firstly extractant DLLME could be collected transferred easily after at lower temperature. Several main parameters closely related to efficiencies, such volume extractant, time, pH salt concentration sample solution, temperature, time process, were investigated in detail. The results showed that established method had good performance enrichment factors range 29–47. Furthermore, linearities over 2–2000 µg/L, limits detection 0.12–0.53 µg/L compounds. recoveries ranged 80.2% 108.4%, RSDs (intra- inter-assay) less than 8.5%. At last, applicability determination aqueous solutions, satisfactory (83.0–107.0%) acquired. Taken together, α−terpineol, enol, first used DLLME-SFO, which provided alternative simplicity rapidity samples.