Recent Materials Developed for Dispersive Solid Phase Extraction

Ścigalski, Piotr; Kosobucki, Przemysław

doi:10.3390/molecules25214869

Cited by 65 publications

(26 citation statements)

References 82 publications

(87 reference statements)

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“…The resulting process is quick, efficient, and cost-effective, and because it uses so little sorbent and solvent, it can be considered more environmentally friendly than traditional SPE. 27 Nonetheless, there are few investigations on nanoMIPs-based dispersive SPE techniques in the literature. In a study, nano-MIPs and metal-organic frameworks were used in dispersive SPE to extract residual tetracycline drugs from the chicken muscle sample.…”

Section: Introductionmentioning

confidence: 99%

Molecularly imprinted polymer nanoparticles for the recognition of ellagic acid

Yucel

Gulen

Hatir

2022

J of Applied Polymer Sci

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Ellagic acid (EA) is one of the bioactive polyphenolic flavonoids found in many fruits. Over the years, various extraction methods have been developed to isolate pure EA from plant samples. These methods, however, have some disadvantages, such as low specificity and selectivity, not easy incorporation into industrial processes, and low‐purification efficiency. The present study proposes an approach based on the molecular imprinting technique. We describe the nanoscale production of EA imprinted polymers for the first time. We develop a straightforward, efficient, and environmentally friendly precipitation polymerization method to synthesize molecularly imprinted polymer nanoparticles (nanoMIPs). To increase the affinity of nanoMIPs, we explore molecular interactions between EA and functional monomers before polymerization. The nanoMIPs are successfully synthesized with an excellent yield of 94.5%. The maximum binding capacity is 66.6 and 45.6 μmol/g for EA imprinted and nonimprinted polymers, respectively. Furthermore, in the presence of quercetin, an EA analog, and other compounds in the pomegranate peel extract solution, nanoMIPs selectively retain EA. NanoMIPs will be a valuable analytical tool for separation and sensing applications, especially dispersive solid‐phase extraction.

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Section: Introductionmentioning

confidence: 99%

Molecularly imprinted polymer nanoparticles for the recognition of ellagic acid

Yucel

Gulen

Hatir

2022

J of Applied Polymer Sci

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“…At present, a large selection of sorbents are available on the market, both as bulk material and in the form of packed cartridges, discs, pipette tips and 96-wellplates, enabling the use of SPE for a wide range of applications [25,26]. In this regard, polymer-based sorbents still count as one of the most important SPE materials with progressive research being conducted over the last decades [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

The Crosslinker Matters: Vinylimidazole-Based Anion Exchange Polymer for Dispersive Solid-Phase Extraction of Phenolic Acids

et al. 2022

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Crosslinkers are indispensable constituents for the preparation of SPE materials with ethylene glycol dimethacrylate (EGDMA) and divinylbenzene (DVB) among the most prominent representatives. A crosslinker that has not yet been used for the preparation of SPE sorbents is 3,3’-(hexane-1,6-diyl)bis(1-vinylimidazolium) bromide [C6-bis-VIM] [Br]. In this study, we synthesized differently crosslinked vinylimidazole polymers with EGDMA, DVB and [C6-bis-VIM] [Br] and evaluated their extraction efficiencies towards phenolic acids. Dispersive SPE experiments performed with the [C6-bis-VIM] [Br] crosslinked polymers exhibited significantly higher extraction recoveries for the majority of analytes. Due to these promising results, the [C6-bis-VIM] [Br] crosslinked polymer was optimized in terms of the monomer to crosslinker ratio and an efficient dispersive SPE protocol was developed, with maximum recoveries ranging from 84.1–92.5% and RSD values ˂ 1%. The developed extraction procedure was also applied to cartridges resulting in recoveries between 97.2 and 98.5%, which were on average 5% higher than with the commercial anion exchange sorbent Oasis® MAX. Furthermore, the sorbent was regenerated showing a good reusability for the majority of analytes. In conclusion, this study clearly highlights the yet untapped potential of the crosslinker, [C6-bis-VIM] [Br], with respect to the synthesis of efficient anion exchange polymers for SPE.

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“…Nevertheless, new classes of sorption materials are investigated to improve selectivity toward target analytes, increase sorption capacity, enhance mechanical durability, and make the entire process more environmentally-friendly. Among such new materials are silica-based sorbents, magnetic nanoparticles, and carbon-derived materials, such as graphene or fullerene-related carbon nanotubes, metal-organic frameworks, porous polymers, and biopolymers [ 6 , 7 ]. Silica-based materials are easy to synthesize, providing a rigid material with satisfactory resistance to shrinking and swelling but suffer from limited capability for modification and moderate tolerance to extreme pH values.…”

Section: Introductionmentioning

confidence: 99%

Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects

2021

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In the last 10 years, we have witnessed an extensive development of instrumental techniques in analytical methods for determination of various molecules and ions at very low concentrations. Nevertheless, the presence of interfering components of complex samples hampered the applicability of new analytical strategies. Thus, additional sample pre-treatment steps were proposed to overcome the problem. Solid sorbents were used for clean-up samples but insufficient selectivity of commercial materials limited their utility. Here, the application of molecularly imprinted polymers (MIPs) or ion-imprinted polymers (IIPs) in the separation processes have recently attracted attention due to their many advantages, such as high selectivity, robustness, and low costs of the fabrication process. Bulk or monoliths, microspheres and core-shell materials, magnetically susceptible and stir-bar imprinted materials are applicable to different modes of solid-phase extraction to determine target analytes and ions in a very complex environment such as blood, urine, soil, or food. The capability to perform a specific separation of enantiomers is a substantial advantage in clinical analysis. The ion-imprinted sorbents gained interest in trace analysis of pollutants in environmental samples. In this review, the current synthetic approaches for the preparation of MIPs and IIPs are comprehensively discussed together with a detailed characterization of respective materials. Furthermore, the use of sorbents in environmental, food, and biomedical analyses will be emphasized to point out current limits and highlight the future prospects for further development in the field.

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Recent Materials Developed for Dispersive Solid Phase Extraction

Cited by 65 publications

References 82 publications

Molecularly imprinted polymer nanoparticles for the recognition of ellagic acid

Molecularly imprinted polymer nanoparticles for the recognition of ellagic acid

The Crosslinker Matters: Vinylimidazole-Based Anion Exchange Polymer for Dispersive Solid-Phase Extraction of Phenolic Acids

Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects

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