Choline chloride-based deep eutectic solvents as additives for optimizing chromatographic behavior of caffeic acid

Li, Guizhen; Zhu, Tao; Lei, Yong

doi:10.1007/s11814-015-0054-6

Cited by 33 publications

(11 citation statements)

References 33 publications

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“…The significant difference can be seen in the region between 400–1300 cm −1 , which corresponds to the so‐called fingerprint region of spectra. From Figure 1, it is possible to observe a band‐increase intensity at 3297 cm −1 , associated with the −OH group, which was attributed to the formation of hydrogen bonding between −OH groups in glycerol and the ChCl molecules [48]. The vibrational mode referring to the angular stretching of the −CH 2 group displaced +57 cm −1 , being identified in the DES spectrum at 1477 cm −1 and a reduction in intensity in the band at 1109 cm −1 , referring to the C−O bond, due to hydrogen bond interactions formed through the oxygen atom; indicating that those groups are involved in hydrogen interactions.…”

Section: Resultsmentioning

confidence: 97%

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

et al. 2021

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Glyceline, reline, or ethaline deep eutectic solvents and carbon black nanoparticles within a crosslinked chitosan film are investigated as glassy carbon electrode modifiers for the first time. The selected 5 mg mL−1 glyceline modified GCE was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, and scanning electron microscopy. Simultaneous determination of acetaminophen and diclofenac by differential pulse adsorptive stripping voltammetry (DPAdSV) presented limits of detection of 2.6×10−8 and 5.2×10−8 mol L−1 for acetaminophen and diclofenac, respectively, in pharmaceutical and biological samples. The obtained results were compared with those obtained by HPLC at a confidence level of 95 %.

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Section: Resultsmentioning

confidence: 97%

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

et al. 2021

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“…DESs have been used as appropriate mobile phases or mobile phase additives in different chromatographic strategies [12,[60][61][62][63][64][65]. For example, Funari et al used three natural DESs as the main mobile phase components to separate two different compound mixtures [63].…”

Section: Deep Eutectic Solvents As Mobile Phase or Mobile Phase Additmentioning

confidence: 99%

“…DESs were also used as additives to optimize the chromatographic behaviors of caffeic acid. The results showed that the peaks shape of caffeic acid became narrower, and the number of theoretical plates and resolution efficiency were improved [62]. A DES based on ChCl and EG was designed as a buffer or organic‐free mobile phase for the analysis of melamine in milk [64].…”

Section: The Applications Of Deep Eutectic Solvents In Chromatographimentioning

confidence: 99%

Development and applications of deep eutectic solvent derived functional materials in chromatographic separation

Liu

Wang

et al. 2020

J of Separation Science

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Deep eutectic solvents have received increasing attention over the past decade, and the green and versatile nature makes them important media for developing environmentally friendly and sustainable technologies. In addition to act as green alternatives to traditional organic solvents, deep eutectic solvents offer tremendous opportunities to produce different kinds of emerging functional materials. The present review highlights the recent development and applications of deep functional materials based on deep eutectic solvents as novel adsorbents for diverse analytes in complex matrices. The type, preparation, and unique properties of deep eutectic solvents, the synthesis of deep eutectic solvent derived materials, as well as their applications in chromatographic separation are described. We aim to demonstrate that deep eutectic solvents not only allow the design of eco-friendly extraction processes but also open straightforward access to advanced materials in sample preparation.

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“…In a previous report, a DESs of choline chloride and glycerol (molar ratio 1:3) was used as additive of mobile phase at 0.1% v/v to optimize chromatographic behavior of caffeic acid; obtaining an increase in the theoretical plate number, shorten the retention time and modify the chromatogram shape [27]. In other work, the addition of DESs in the mobile phase for separation of four quaternary alkaloids (coptisine chloride, sanguinarine, berberine chloride, and chelerythrine) in a C18 column was studied; the composition of acetonitrile and 1.0% DES aqueous solution (choline chloride:ethylene glycol, 1:3 molar ratio) to pH 3.3 showed the best symmetrical peaks and significantly improved the separation [28].…”

Section: Introductionmentioning

confidence: 99%

A simple HPLC-DAD method for analysis of phenolic acids: Addition effect of a hydrophilic deep eutectic solvent to the mobile phase

Pérez-López

Cavazos-Rocha

Delgado-Montemayor

et al. 2023

AChrom

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The analysis of phenolic acids (PAs) is of great importance, because they are frequently present in natural products and their derivatives, and these compounds also have multiple beneficial effects to human health. This work is focusing on the separation of seven PAs (caffeic acid, coumaric acid, gallic acid, ferulic acid, protocatechuic acid, sinapic acid, and syringic acid), in a reversed-phase liquid chromatographic (RP-HPLC) isocratic method using a hydrophilic deep eutectic solvent (DES) as a mobile phase additive. The analysis was carried out with a diode array detector. The used DES was composed by choline chloride and glycerol, and it was characterized by infrared spectroscopy. The combination of choline chloride:glycerol (1:4) added at 0.25% to mobile phase composed of 0.15% formic acid aqueous solution and methanol (80:20), showed the best separation for target analytes. The new proposed method was validated, and results indicated that the proposed method is linear, selective for almost all analytes, provided high sensitivity with limit of detection ranges from 0.009 to 0.023 mg mL−1, and has satisfactory precision and accuracy, with values of relative standard deviation of 0.24–2.65% and recoveries of 97.97–109%, respectively. Additionally, this method was successfully applied to simultaneous determination of phenolic acids in three kinds of samples of powder to prepare lemon flavour drink enriched with black tea extract.

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Choline chloride-based deep eutectic solvents as additives for optimizing chromatographic behavior of caffeic acid

Cited by 33 publications

References 33 publications

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

Development and applications of deep eutectic solvent derived functional materials in chromatographic separation

A simple HPLC-DAD method for analysis of phenolic acids: Addition effect of a hydrophilic deep eutectic solvent to the mobile phase

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