Novel microporous β-cyclodextrin polymer as sorbent for solid-phase extraction of bisphenols in water samples and orange juice

Li, Yarong; Lu, Pingli; Cheng, Jincheng; Zhu, Xingbao; Guo, Weihua; Liu, Lijun; Wang, Qiang; He, Chiyang; Liu, Shaorong

doi:10.1016/j.talanta.2018.05.030

Cited by 59 publications

(15 citation statements)

References 42 publications

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“…For instance, S values ranging up to 263 m 2 g –1 were claimed for a series of materials obtained from β-cyclodextrin (βCD) and tetrafluoro-terephtalonitrile . Comparable results were found by using decafluorobiphenyl, whereas an outstanding area of 1225 m 2 g –1 and a pore volume of 1.71 cm 3 g –1 were found for a material obtained by reacting a per -benzyloxy-cyclodextrin with formaldehyde dimethylacetal . Nevertheless, beyond these few exceptions, S values by far below 10 m 2 g –1 are usually found for materials prepared from cyclodextrins and typical reticulating agents such as diisocyanates, , epichlorohydrin, , or poly(carboxylic acid)s. , Similarly, S values not larger than 8 m 2 g –1 were found for a series of cyclodextrin–calixarene copolymers, together with V values smaller than 0.03 cm 3 g –1 and S values smaller than 4 nm .…”

Section: Introductionmentioning

confidence: 99%

Water Dynamics at the Solid–Liquid Interface to Unveil the Textural Features of Synthetic Nanosponges

et al. 2020

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A fast-field-cycling NMR investigation was carried out on a set of polyurethane cyclodextrin nanosponges, in order to gain information on their textural properties, which have been proven to be quite difficult to assess by means of ordinary porosimetric techniques. Experiments were performed on both dry and wet samples, in order to evaluate the behavior of the “nonexchangeable” C-bound 1 H nuclei, as well as the one of the mobile protons belonging to the skeletal hydroxyl groups and the water molecules. The results acquired for the wet samples accounted for the molecular mobility of water molecules within the channels of the nanosponge network, leading back to the possible pore size distribution. Owing to the intrinsic difficulties involved in a quantitative assessment of the textural properties, in the present study we alternatively propose an extension to nanosponges of the concept of “connectivity”, which has been already employed to discuss the properties of soils.

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Section: Introductionmentioning

confidence: 99%

Water Dynamics at the Solid–Liquid Interface to Unveil the Textural Features of Synthetic Nanosponges

et al. 2020

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“…Facing the increasing health risk of bisphenol residues, developing a simple and sensitive method for the quantitative analysis trace BPs is meaningful for human health assessments. At present, some sample pretreatment techniques for the determination of BPs from different samples mainly rely on SPE [24], SPME [25], and MSPE [26]. There have been still no reports focusing on the development of online sample preparation methods based on highly selective COFs as enrichment media for analysis of BPs.…”

Section: Introductionmentioning

confidence: 99%

β‐Ketoenamine‐linked covalent organic framework absorbent for online micro‐solid phase extraction of trace levels bisphenols in plastic samples

Zhang

Yuan

et al. 2022

J of Separation Science

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Covalent organic frameworks with tunable porous crystallinity and outstanding stability have exhibited fascinating pretreatment performance as ideal extraction media. Herein, the β-ketoenamine-linked TpPa-1 synthesized by 1,3,5-triformylphloroglucinol and paraphenylenediamine was employed as the absorbent for online micro-solid phase extraction of trace bisphenols combined with high-performance liquid chromatography detection. A series of characterizations indicated that the TpPa-1 possessed large surface areas, high stability, and hydrophobicity. The main experimental parameters affecting the extraction efficiency were optimized in detail. Compared with four commercial sorbents, the TpPa-1 exhibited superior enrichment capacity for extracting bisphenols. Under the optimum conditions, the established method demonstrated a wide linear range and high sensitivity with the limit of detection ranging from 0.05-0.06 μg/L. Furthermore, the developed method was successfully applied to determine bisphenols in plastic samples. Bisphenol A was actually detected in a transparent box with a concentration of 0.31 μg/g, and the recoveries of the four bisphenols in the plastic samples were 80.5-116% with the relative standard deviation less than 9.2%. Such performance was attributed to recognition affinity, including the ππ affinity, hydrophobic effect, and hydrogen bond. These results demonstrated that TpPa-1 possessed great potential to be an excellent pretreatment medium for online separation and analysis of trace analytes in complex samples.

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“…2,3 Previous reports have conrmed that the main hazards of bisphenol analogues were related to biological toxicity and endocrine disrupting effects. 4 With growing global concerns and increasingly stringent legal requirements related to the emission of synthetic organic chemicals, it is urgent to investigate simple and effective strategies for the removal of bisphenol contaminants from aqueous environments.…”

Section: Introductionmentioning

confidence: 99%

Efficient removal of bisphenol pollutants on imine-based covalent organic frameworks: adsorption behavior and mechanism

Zhang

Chen

et al. 2021

RSC Adv.

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Novel microporous β-cyclodextrin polymer as sorbent for solid-phase extraction of bisphenols in water samples and orange juice

Cited by 59 publications

References 42 publications

Water Dynamics at the Solid–Liquid Interface to Unveil the Textural Features of Synthetic Nanosponges

Water Dynamics at the Solid–Liquid Interface to Unveil the Textural Features of Synthetic Nanosponges

β‐Ketoenamine‐linked covalent organic framework absorbent for online micro‐solid phase extraction of trace levels bisphenols in plastic samples

Efficient removal of bisphenol pollutants on imine-based covalent organic frameworks: adsorption behavior and mechanism

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