γ-Cyclodextrin metal-organic framework supported by polydopamine as stationary phases for electrochromatographic enantioseparation

Li, Zhentao; Mao, Zhenkun; Zhou, Wei; Chen, Zilin

doi:10.1016/j.talanta.2020.121160

Cited by 52 publications

(22 citation statements)

References 41 publications

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“…Reproduced with permission. 217 Copyright 2020, Elsevier. (j) Diagrammatic illustration for the separation of (R and S) 1-phenylethanol molecules by CD-MOF/PES mixed matrix membrane and the structural representation of CD-MOF.…”

Section: Storage Separation and Removal Of Chemicalsmentioning

confidence: 99%

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Cyclodextrin metal–organic frameworks and derivatives: recent developments and applications

et al. 2022

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Section: Storage Separation and Removal Of Chemicalsmentioning

confidence: 99%

“…For example, CD-MOF-based materials can serve as chiral separation media or selectors in columns. 217,218 In 2017, Yang and co-workers reported CD-MOF-1 as a chiral HPLC separation phase for a handful of industrially relevant chiral aromatic alcohols (Fig. 10f).…”

Section: Storage Separation and Removal Of Chemicalsmentioning

confidence: 99%

Cyclodextrin metal–organic frameworks and derivatives: recent developments and applications

et al. 2022

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“…Dopamine is a major component of the mussel foot proteins and can self-polymerize to form polydopamine (PDA) films on a wide range of materials [29]. Up to present, a lot of attention has been focused upon the preparation of OT-CEC columns based on PDA properties, such as its adhesive capacity [30] and chemical reactivity [31].…”

Section: Introductionmentioning

confidence: 99%

β‐Cyclodextrin covalent organic framework supported by polydopamine as stationary phases for electrochromatographic enantioseparation

Guan

Huang

et al. 2022

Electrophoresis

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In this work, a new open‐tubular capillary electrochromatography (OT‐CEC) column was prepared using β‐cyclodextrin covalent organic framework (β‐CD COF) as a stationary phase. Polydopamine was used to assist fabrication of β‐CD COF on an inner wall of a fused‐silica capillary. The coating layer on the capillary was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Electroosmotic flow (EOF) was also studied to evaluate the variation of the inner wall of immobilized columns. Furthermore, the chiral separation effectiveness of the fabricated capillary column was evaluated by CEC using enantiomers of several related proton pump inhibitors as model analytes, including omeprazole, lansoprazole, pantoprazole and tenatoprazole. The effects of bonding time and concentration of β‐CD COF, the type, concentration and pH of buffer, applied voltage were investigated to obtain satisfactory enantioselectivity. In the optimum conditions, the enantiomers of four analytes were resolved within 15 min with resolutions of 1.63–2.62. The relative standard deviation values for migration times and resolutions of the analytes representing intraday and interday were less than 6.75% and 4.24%, respectively. The results reveal that β‐CD COF has great potential as chiral‐stationary phases for enantioseparation in CEC.

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“…In the same year, Pan's research group [8] used ZnO nanoparticles as an effective nucleating agent to prepare monochiral MOF [Zn(s‐nip) 2 ] n in situ on the inner wall of the capillary for the separation of four monoamine neurotransmitter enantiomers by OT‐CEC, in which isoprenaline and epinephrine did not reach the baseline separation. Recently, Cu‐based MOFs have been reported as CSP for the separation of chiral compounds, such as JLU‐Liu23 [9], HKUST‐1 [10], and Cu‐SD [11]. However, these CSPs obtained by the adhesion and coordination interaction were easy to fall from the inner wall.…”

Section: Introductionmentioning

confidence: 99%

One‐pot synthesis of a novel chiral Zr‐based metal‐organic framework for capillary electrochromatographic enantioseparation

Gao

Qin

et al. 2022

Electrophoresis

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A novel chiral stationary phase (CSP) of Zr-based metal-organic framework, l-Cys-PCN-224, was prepared by one-pot method and applied for the enantioseparation by capillary electrochromatography. The CSP was characterized by X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, Fourier-transform infrared spectra, nitrogen adsorption/desorption, circular dichroism spectrum, zeta-potential, and so on. The results revealed that the CSP had good crystallinity, high specific surface area (2580 m 2 /g), and good thermal stability. Meanwhile, the cross-section of l-Cys-PCN-224-bonded opentubular (OT) column was observed by a scanning electron microscope, which proved the successful bonding of l-Cys-PCN-224 particles to the inner wall. Relative standard deviations of the column efficiencies were 3.87%-9.14%, and not obviously changed after 200 runs, which indicated that l-Cys-PCN-224-bonded OT column had the better stability and reproducibility. Excellent chiral separation performance was verified with nine kinds of natural amino acids including acidic, neutral, and basic as the analytes. All amino acids studied achieved good separation with the resolution of 1.38-13.9 and selector factor of 1.11-3.71. These results demonstrated that the CSP had an excellent potential in the chiral separation field.

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γ-Cyclodextrin metal-organic framework supported by polydopamine as stationary phases for electrochromatographic enantioseparation

Cited by 52 publications

References 41 publications

Cyclodextrin metal–organic frameworks and derivatives: recent developments and applications

Cyclodextrin metal–organic frameworks and derivatives: recent developments and applications

β‐Cyclodextrin covalent organic framework supported by polydopamine as stationary phases for electrochromatographic enantioseparation

One‐pot synthesis of a novel chiral Zr‐based metal‐organic framework for capillary electrochromatographic enantioseparation

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