A review on molecularly imprinted magnetic solid phase extraction emphasizing the analysis of antibiotics in complex matrices:Design, preparation, and application

Journal of Chromatography A, Journal Year: 2025, Volume and Issue: 1742, P. 465653 - 465653

Published: Jan. 5, 2025

Language: Английский

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Recent progress in magnetic covalent organic framework materials for the enrichment and detection of typical organic pollutants

Chinese Journal of Chromatography, Journal Year: 2025, Volume and Issue: 43(2), P. 107 - 119

Published: Feb. 1, 2025

Trace contaminants are toxic and their widespread presence in the environment potentially threatens human health. The levels of these pollutants often difficult to determine directly using instruments owing complexities matrices. Hence, pretreatment steps, such as sample purification concentration, key along with various processes that enhance accuracy sensitivity detection method. To date, researchers have successfully developed a variety efficient reliable sample-pretreatment techniques based on different principles. Among these, magnetic solid-phase extraction (MSPE) is rapid technology similar solid-phase-extraction (SPE) principle, which mainly enriches target analytes by exploiting interactions functional groups surfaces materials, thereby achieving separation when an external field applied. MSPE has been focus attention environmental-sample-pretreatment, food-analysis, other fields advantages include ease operation, low cost, high enrichment efficiency. selection material process because traditional materials exhibit certain functionality limitations. Accordingly, designing synthesizing green functionalized become research this field, having extensively explored multiple ways preparing modified through introduction emerging including metal-organic frameworks (MOFs), covalent organic (COFs), carbon nanotubes (CNTs), graphene oxide (GO), specific modify effectively expanded applications scope MSPE. COFs porous crystalline consisting light elements (C, N, H, O B, etc.) linked bonds. classified imine COFs, boronic-acid triazine ketenimine according bonding type. Moreover, it worth mentioning can be synthesized from number monomers, exposed COF surface also used for further modification purposes. versatile modifiable; consequently, they attracted significant attention, series COF-functionalized designed synthesized. (MCOFs) combine materials. MCOFs not only endowed large areas, porosities, good stabilities characteristic but reusability characteristics material, quickly efficiently enriching targets hydrogen bonding, hydrophobicity, π-π stacking, van der Waals forces, making them ideal converted into more-versatile post-modification strategies. Combining advanced analytical techniques, performance liquid chromatography (HPLC) gas chromatography-mass spectrometry (GC-MS) improved limits (LODs) well method accuracy; widely enrich detect trace pollutants. However, some design synthesis challenges remain need overcome, despite promising potential MCOFs. Future needs exploring novel synthetic strategies reduce experimental costs improve functionalities while expanding applicabilities broader In review, we first introduce discuss construction designs MCOF composites, then summarize use pesticides, endocrine disruptors (EDCs), pharmaceuticals, personal care products (PPCPs), finally provide outlook future developmental prospects.

Language: Английский

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Metal-organic framework UiO-66-NH2 functionalized polydopamine-modified magnetic multi-walled carbon nanotubes for convenient magnetic solid-phase extraction of sixteen quinolones

Food Chemistry, Journal Year: 2025, Volume and Issue: 486, P. 144604 - 144604

Published: May 2, 2025

Language: Английский

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Development of an Enhanced Quick, Easy, Cheap, Effective, Rugged, and Safe Method for Determination of Quinolone Drug Residues in Quail Eggs

Separation Science Plus, Journal Year: 2024, Volume and Issue: 7(11)

Published: Sept. 18, 2024

ABSTRACT An enhanced quick, easy, cheap, effective, rugged, and safe (QuEChERS) purification method utilizing multi‐walled carbon nanotubes (MWCNTs) has been developed coupled with liquid chromatography‐tandem mass spectrometry for the determination of eight quinolone drug residues in quail eggs. The sample was extracted using ethylenediamine tetraacetic acid‐McIlvaine buffer (pH = 4.0) 2% formic acid acetonitrile, followed by salting out MgSO 4 , primary secondary amine (PSA), MWCNT, Octadecylsilane (C18). demonstrated linear relationships target compounds within range 2–100 µg/L correlation coefficients ( r ) exceeding 0.99. limits detection quantification were determined to be 0.4 0.8 µg/kg, respectively. Validation through a three‐level spiking test (low, medium, high) eggs resulted an average recovery rate ranging from 86.8% 113.7%, relative standard deviations between 2.6% 10.2% n 6). This offers rapid operation, excellent efficiency, high sensitivity, making it suitable qualitative quantitative analysis Application this batch 20 revealed presence enrofloxacin ciprofloxacin, suggesting potential risk non‐compliant quinolones use egg production.

Language: Английский

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Determination of 25 quinolones in water and milk by a magnetic sorbent Fe3O4@SiO2-HBTA-TTA-COF combining with UPLC-MS/MS

Microchemical Journal, Journal Year: 2024, Volume and Issue: unknown, P. 112519 - 112519

Published: Dec. 1, 2024

Language: Английский

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Field isolation and capture of fluoroquinolones in waters with porous monolith-based multiple channels in-tip microextraction technique prior to HPLC quantification

Microchemical Journal, Journal Year: 2024, Volume and Issue: 202, P. 110823 - 110823

Published: May 18, 2024

Language: Английский

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Rapid and simultaneous determination of ultratrace pefloxacin and fleroxacin residues in wastewater by Al3+ sensitized first derivative synchronous fluorescence spectrometry

Microchemical Journal, Journal Year: 2024, Volume and Issue: 207, P. 111849 - 111849

Published: Oct. 9, 2024

Language: Английский

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