Surfactant-based ionic liquids for extraction of phenolic compounds combined with rapid quantification using capillary electrophoresis

A rapid liquid phase extraction employing a novel hydrophobic surfactant‐based room temperature ionic liquid (RTIL), tetrabutylphosphonium dioctyl sulfosuccinate ([4C4P][AOT]), coupled with capillary electrophoretic‐UV (CE‐UV) detection is developed for removal and determination of phenolic compound...

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Veröffentlicht in:Electrophoresis 2014-09, Vol.35 (17), p.2463-2469
Hauptverfasser: Huang, Fangzhi, Berton, Paula, Lu, Chengfei, Siraj, Noureen, Wang, Chun, Magut, Paul K. S., Warner, Isiah M.
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container_end_page 2469
container_issue 17
container_start_page 2463
container_title Electrophoresis
container_volume 35
creator Huang, Fangzhi
Berton, Paula
Lu, Chengfei
Siraj, Noureen
Wang, Chun
Magut, Paul K. S.
Warner, Isiah M.
description A rapid liquid phase extraction employing a novel hydrophobic surfactant‐based room temperature ionic liquid (RTIL), tetrabutylphosphonium dioctyl sulfosuccinate ([4C4P][AOT]), coupled with capillary electrophoretic‐UV (CE‐UV) detection is developed for removal and determination of phenolic compounds. The long‐carbon‐chain RTIL used is sparingly soluble in most solvents and can be used to replace volatile organic solvents. This fact, in combination with functional‐surfactant‐anions, is proposed to reduce the interfacial energy of the two immiscible liquid phases, resulting in highly efficient extraction of analytes. Several parameters that influence the extraction efficiencies, such as extraction time, RTIL type, pH value, and ionic strength of aqueous solutions, were investigated. It was found that, under acidic conditions, most of the investigated phenols were extracted from aqueous solution into the RTIL phase within 12 min. Good linearity was observed over the concentration range of 0.1–80.0 μg/mL for all phenols investigated. The precision of this method, expressed as RSD, was determined to be within 3.4–5.3% range. The LODs (S/N = 3) of the method were in the range of 0.047–0.257 μg/mL. The proposed methodology was successfully applied to determination of phenols in real water samples.
doi_str_mv 10.1002/elps.201300589
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subjects Aqueous solutions
Capillarity
Electrophoresis
Electrophoresis, Capillary - methods
Extraction
Hydrogen-Ion Concentration
Ionic liquids
Ionic Liquids - chemistry
Limit of Detection
Linear Models
Liquid phases
Osmolar Concentration
Phenols
Phenols - analysis
Phenols - chemistry
Phenols - isolation & purification
Reproducibility of Results
Sodium Chloride
Solvents
Surface-Active Agents - chemistry
Surfactant-based ionic liquid
title Surfactant-based ionic liquids for extraction of phenolic compounds combined with rapid quantification using capillary electrophoresis
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