PMID- 34902719 OWN - NLM STAT- MEDLINE DCOM- 20220111 LR - 20220111 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1662 DP - 2022 Jan 11 TI - New low viscous hydrophobic deep eutectic solvents for the ultrasound-assisted dispersive liquid-liquid microextraction of endocrine-disrupting phenols in water, milk and beverage. PG - 462728 LID - S0021-9673(21)00850-5 [pii] LID - 10.1016/j.chroma.2021.462728 [doi] AB - In the present work, several new hydrophobic deep eutectic solvents (HDESs) were prepared with quaternary ammonium salts as hydrogen bond acceptors (HBAs) and salicylate esters as hydrogen bond donors (HBDs). Then, the obtained HDESs were used as extraction solvents to establish an ultrasound-assisted dispersive liquid-liquid microextraction method combined with high-performance liquid chromatography-ultraviolet detection technique for the determination of four endocrine-disrupting phenols (EDPs) compounds. One of the obtained HDESs composed of tetrabutylammonium chloride (N(4444)Cl) and methyl salicylate possessed a viscosity of 89.28 mPa*s lower than most reported ionic HDESs (>200 mPa*s), and the low viscous HDES was selected as the optimal extraction solvent. Several key parameters affecting the extraction efficiency were investigated, including the type and volume of HDES, ultrasound time, sample solution pH and salt addition. Under the optimized experimental conditions, the proposed method had good coefficients of determination (R(2) > 0.9976) in the linear range of 0.5-400 microg*L(-1), the limits of quantification and limits of detection respectively were 0.5-2.5 microg*L(-1) and 0.25-1 microg*L(-1), and the recoveries were in the range of 81.79-109.82%. Finally, the method was used for the preconcentration and determination of EDPs in different samples, including bottled water, tea beverage and milk. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Qiao, Lizhen AU - Qiao L AD - State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China. Electronic address: qiaolz@dlut.edu.cn. FAU - Sun, Ruiting AU - Sun R AD - State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China. FAU - Tao, Yuan AU - Tao Y AD - State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China. FAU - Yan, Yang AU - Yan Y AD - State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China. LA - eng PT - Journal Article DEP - 20211203 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Deep Eutectic Solvents) RN - 0 (Phenols) RN - 0 (Solvents) RN - 0 (Water Pollutants, Chemical) RN - 059QF0KO0R (Water) SB - IM MH - Animals MH - Beverages MH - Deep Eutectic Solvents MH - Limit of Detection MH - *Liquid Phase Microextraction MH - Milk/chemistry MH - Phenols MH - Solvents MH - Viscosity MH - Water MH - *Water Pollutants, Chemical/analysis OTO - NOTNLM OT - Dispersive liquid-liquid microextraction OT - Endocrine-disrupting phenols OT - Low viscous hydrophobic deep eutectic solvent COIS- Declaration of Competing Interest There was no conflict of interest to declare. EDAT- 2021/12/14 06:00 MHDA- 2022/01/12 06:00 CRDT- 2021/12/13 20:23 PHST- 2021/09/23 00:00 [received] PHST- 2021/11/17 00:00 [revised] PHST- 2021/11/18 00:00 [accepted] PHST- 2021/12/14 06:00 [pubmed] PHST- 2022/01/12 06:00 [medline] PHST- 2021/12/13 20:23 [entrez] AID - S0021-9673(21)00850-5 [pii] AID - 10.1016/j.chroma.2021.462728 [doi] PST - ppublish SO - J Chromatogr A. 2022 Jan 11;1662:462728. doi: 10.1016/j.chroma.2021.462728. Epub 2021 Dec 3.