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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Developments and Applications of Molecularly Imprinted Polymer-Based In-Tube Solid Phase Microextraction Technique for Efficient Sample Preparation

Molecules, Journal Year: 2024, Volume and Issue: 29(18), P. 4472 - 4472

Published: Sept. 20, 2024

Despite advancements in the sensitivity and performance of analytical instruments, sample preparation remains a bottleneck process. Currently, solid-phase extraction is more widely used than traditional organic solvent due to its ease use lower requirements. Moreover, various microextraction techniques such as micro extraction, dispersive microextraction, stir bar sorptive liquid-phase magnetic bead have been developed minimize size, reduce usage, enable automation. Among these, in-tube (IT-SPME) using capillaries devices has gained attention an advanced “green technique” that combines miniaturization, on-line automation, reduced consumption. Capillary tubes IT-SPME are categorized into configurations: inner-wall-coated, particle-packed, fiber-packed, rod monolith, operating either draw/eject system or flow-through system. Additionally, developments novel adsorbents monoliths, ionic liquids, restricted-access materials, molecularly imprinted polymers (MIPs), graphene, carbon nanotubes, inorganic nanoparticles, organometallic frameworks improved efficiency selectivity. MIPs, particular, stable, custom-made with molecular recognition capabilities formed during synthesis, making them exceptional “smart adsorbents” for selective preparation. The MIP fabrication process involves three main stages: pre-arrangement capability, polymerization, template removal. After forming template-monomer complex, polymerization creates polymer network where molecules anchored, final step removing produce cavities complementary molecules. This review first paper focus on MIP-based IT-SPME, which integrates selectivity MIPs efficient summarizes recent applications.

Language: Английский

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Unlocking the potential of plant polyphenols: advances in extraction, antibacterial mechanisms, and future applications

Food Science and Biotechnology, Journal Year: 2024, Volume and Issue: 34(6), P. 1235 - 1259

Published: Oct. 15, 2024

Language: Английский

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Magnetic Solid‐Phase Extraction of Benzoic Acids in Fruit Juices Using Hydrophilic Metal‐Organic Framework MIL‐101(Cr) Coated with Magnetic Nanoparticles

Journal of Separation Science, Journal Year: 2025, Volume and Issue: 48(3)

Published: March 1, 2025

ABSTRACT In this study, magnetic Fe 3 O 4 ‐coated metal‐organic framework composites, CONH 2 ‐MIL‐101(Cr)/Fe , were synthesized by depositing particles on the surface of amidated MIL‐101(Cr). The scanning electron microscope images show that MIL‐101(Cr) crystals uniformly coated particles. hysteresis curve reveals a saturated magnetization value 23.47 emu/g. water contact angle decreases from 61.00° to 12.88° after amidation and coating. solid‐phase extraction (MSPE) efficiency for benzoic acid derivatives was studied. Under optimal conditions, adsorption desorption processes can be completed within 5 min, maximum capacity protocatechuic (PCA) vanillic (VA) is 10.31 17.30 mg/g. Coupling MSPE with high‐performance liquid chromatography‐ultraviolet detection, detection limit PCA VA 0.29 0.58 ng/mL, respectively. mean recoveries in spiked samples ranged 82.85%–91.27% relative standard deviations lower than 0.33%–5.33%. This study provides inspiration fabrication novel sorbents, reliable method analysis derivatives.

Language: Английский

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Physicochemical properties, biological activities, applications, and protective potential of the skeletal system of Eucommia ulmoides polysaccharides: a review

Frontiers in Pharmacology, Journal Year: 2025, Volume and Issue: 16

Published: March 13, 2025

Eucommia ulmoides Oliv ( E. ) is a widely distributed plant with economic value, nutritional edible value and even medicinal value. In recent years, polysaccharides are considered to be one of the most important bioactive ingredients in . Modern pharmacological studies show that crude extract polysaccharides, their active monomer ramifications have wide range activities vitro vivo experiments, which can used improve inflammation, regulate immunity, osteoporosis, promote osseointegration, etc. Therefore, this review focuses on induction summary research at home abroad summarizes extraction purification, modification methods, physicochemical properties, biological potential mechanisms providing theoretical basis for in-depth study development related products.

Language: Английский

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Mn/Fe3O4@polyimide composite for magnetic solid-phase extraction of phthalate esters from drinking water

Journal of Food Composition and Analysis, Journal Year: 2025, Volume and Issue: unknown, P. 107629 - 107629

Published: April 1, 2025

Language: Английский

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Application of mineral-carbon composite in solid-phase extraction of phthalates from water

Desalination and Water Treatment, Journal Year: 2025, Volume and Issue: unknown, P. 100995 - 100995

Published: Jan. 1, 2025

Language: Английский

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Rapid Separation of Representative Monomer Compound Rutin From Natural Product by Molecularly Imprinted Macroporous Adsorption Resin

Journal of Separation Science, Journal Year: 2025, Volume and Issue: 48(1)

Published: Jan. 1, 2025

ABSTRACT Monomer compounds from natural products are the major source of active pharmaceutical molecules, which provide great opportunities for discovering new drugs. However, contain a large number rather complex compounds. It is difficult to obtain high‐purity monomer products. Herein, we developed molecularly imprinted macroporous adsorption resins (MIRs‐PDA) selective target The response surface methodology was employed optimize fabrication parameters. separation performance MIRs‐PDA representative compound rutin thoroughly studied. We found that presented capacity (107.82 mg/g), high selectivity (selectivity coefficient 2.90), good repeatability, and reusability. can reach 78.5% equilibrium in 20 min, showing quick binding kinetic behavior. Furthermore, showed specific real sample Fagopyrum tataricum extract solution. study mechanism on spontaneous thermodynamically feasible. parameters adapted well pseudo‐second‐order model, there existed equivalent sites MIRs‐PDA. show promising application prospects

Language: Английский

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Electrochemical Synthesis of Polyaniline@Nano Zinc Oxide/Modified Multiwalled Carbon Nanotubes Nanocomposite Coating for Solid Phase Microextraction of Some Polycyclic Aromatic Hydrocarbons in Coffee and Grilled Meat

Journal of Separation Science, Journal Year: 2025, Volume and Issue: 48(1)

Published: Jan. 1, 2025

ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) are carcinogenic compounds resulting from incomplete burning of organic materials. This work describes the successful layer‐by‐layer fabrication a novel zinc oxide nanocomposite made nanoparticles, aniline, sodium dodecyl sulfate, and modified multi‐walled carbon nanotubes on stainless steel wire by electrodeposition. The coating extraction conditions were screened, optimized, validated using factorial design central composite design, respectively. prepared nanocomposites characterized Fourier‐transform infrared spectroscopy, field‐emission scanning electron microscopy, X‐ray diffraction analysis, Brunauer‐Emmett‐Teller techniques. It featured porous structure, excellent heat stability, high capacity. also adhered well to surface. Extracting PAHs was optimized through experimental design. optimal obtained for 60 min, 30%, 30°C time, amount salt, temperature, method generally showed linear range between 0.01 1.50 µg/mL with linearity (R 2 ) 0.9902–0.9992, limits detection less than 0.003 µg/mL, limit quantification lower 0.010 relative standard deviation percent 45. Recovery values analytes in food samples varied 53.4% 110.1%. proposed employed determination some while naphthalene, anthracene, phenanthrene, benzo[a]pyrene, benz[a]anthracene detected certain samples. Overall, our research suggests as potential fiber that enables high‐capacity PAH extraction.

Language: Английский

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Fe₃O₄@Pectin@Acetamide for Magnetic Solid Phase Extraction of Some Parabens in Cosmetic Samples and Their Quantification by High‐Performance Liquid Chromatography‐Ultraviolet Detection

Separation Science Plus, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

ABSTRACT In this project, the in‐situ formation of magnetic nanoparticles modified with pectin and acetamide was presented used as a sorbent in solid‐phase extraction method. The synthesis studied by various characterization methods. employed for microextraction four model analytes including methyl paraben, ethyl propyl butyl paraben. separation measurement extracted compounds were done high‐performance liquid chromatography‐ultraviolet detection. order to achieve best condition, factors affecting efficiency investigated optimized using response surface methodology. obtained following parameters achieved: limits detection: 0.16–0.28 µg/L, quantification: 0.49–0.92 intra‐ inter‐day relative standard deviations: 1.2%–6.6% 1.6%–4.8%, respectively. linear dynamic ranges method paraben 1–200, 0.5–500, 1–500, 1–500 investigate effectiveness method, proposed nanosorbent measure desired parabens cosmetic samples. results showed good accuracy precision developed determination trace amounts target analytes.

Language: Английский

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