TY - JOUR

T1 - A rotating disk sorptive extraction based on hydrophilic deep eutectic solvent formation

AU - Shishov, Andrey

AU - Volodina, Natalia

AU - Gagarionova, Svetlana

AU - Shilovskikh, Vladimir

AU - Bulatov, Andrey

N1 - Funding Information: The study was supported by a grant from the President of the Russian Federation MK-1154.2020.3. Scientific research was partially performed at Chemical Analysis and Materials Research Centre of Saint Petersburg State University. Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/1/2

Y1 - 2021/1/2

N2 - An elegant preconcentration method assumed sorption of polar analytes from complex non-polar matrices on a rotating disk based on hydrophilic deep eutectic solvent formation is presented for the first time. The surface of poly(vinylidene fluoride-co-tetrafluoroethylene) rotating disk was coated with choline chloride acted as a precursor of deep eutectic solvent (hydrogen bond acceptor). The rotating disk was immersed in vegetable oil sample and phenolic compounds (hydrogen bond donors) were efficient separated on the disk during its rotation due to deep eutectic solvent formation. Ability of hydrophilic deep eutectic solvent decomposition in aqueous phase was used for fast analytes elution from the disk surface (2 min). Finally, the obtained aqueous solution of phenolic compounds and choline chloride was analyzed by high-performance liquid chromatography with fluorescence detection. Under optimal conditions, the limits of detection for gallic acid, protocatechuic acid, tyrosol, vanillic acid, p-coumarinic acid, syringaldehyde and thymol were in the range of 10–60 μg L−1. The developed approach allowed to significantly reduce sorption and elution time in comparison with previously reported rotating disk sorptive extraction approaches. The extraction mechanism based on deep eutectic solvent formation provided selective separation of target analytes with absolute extraction recovery in the range of 66–87%.

AB - An elegant preconcentration method assumed sorption of polar analytes from complex non-polar matrices on a rotating disk based on hydrophilic deep eutectic solvent formation is presented for the first time. The surface of poly(vinylidene fluoride-co-tetrafluoroethylene) rotating disk was coated with choline chloride acted as a precursor of deep eutectic solvent (hydrogen bond acceptor). The rotating disk was immersed in vegetable oil sample and phenolic compounds (hydrogen bond donors) were efficient separated on the disk during its rotation due to deep eutectic solvent formation. Ability of hydrophilic deep eutectic solvent decomposition in aqueous phase was used for fast analytes elution from the disk surface (2 min). Finally, the obtained aqueous solution of phenolic compounds and choline chloride was analyzed by high-performance liquid chromatography with fluorescence detection. Under optimal conditions, the limits of detection for gallic acid, protocatechuic acid, tyrosol, vanillic acid, p-coumarinic acid, syringaldehyde and thymol were in the range of 10–60 μg L−1. The developed approach allowed to significantly reduce sorption and elution time in comparison with previously reported rotating disk sorptive extraction approaches. The extraction mechanism based on deep eutectic solvent formation provided selective separation of target analytes with absolute extraction recovery in the range of 66–87%.

KW - Deep eutectic solvent

KW - HPLC-FLD

KW - Phenolic compounds

KW - Rotating disk

KW - Rotating disk sorptive extraction

KW - Sorption

KW - Vegetable oil

KW - GRAPHENE

KW - SILICA

KW - SOLID-PHASE EXTRACTION

KW - WATER

UR - http://www.scopus.com/inward/record.url?scp=85094317842&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/1d8becbb-6297-3d1e-83d1-87059ee4d9a3/

U2 - 10.1016/j.aca.2020.10.020

DO - 10.1016/j.aca.2020.10.020

M3 - Article

AN - SCOPUS:85094317842

VL - 1141

SP - 163

EP - 172

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

SN - 0003-2670

ER -