4.7 Article

Fabrication of highly fluorinated porphyrin-based covalent organic frameworks decorated Fe3O4 nanospheres for magnetic solid phase extraction of fluoroquinolones

Related references

Note: Only part of the references are listed.
Article Biochemical Research Methods

Porous electrospun microfibers for low flow-resistant solid phase extraction of fluoroquinolones in tap water, egg and milk samples

Qiankun Qiu et al.

Summary: In this study, porous electrospun microfibers (PEMFs) with high specific surface area and large pore size were prepared using coaxial ultrasonic water vapor spraying, and successfully applied as adsorbents for solid phase extraction (SPE). By utilizing ultra-performance liquid chromatography-fluorescence detector, five fluoroquinolones were extracted and quantified from water, egg, and milk samples.

JOURNAL OF CHROMATOGRAPHY A (2022)

Article Chemistry, Analytical

In-situ growth of boronic acid-decorated metal-organic framework on Fe3O4 nanospheres for specific enrichment of cis-diol containing nucleosides

Shitao Feng et al.

Summary: In this study, a novel core-shell structured magnetic metal-organic framework nanospheres (Fe3O4@PD@BA-Zr-MOF) were synthesized for highly efficient enrichment of cis-diol containing nucleosides. The as-prepared nanospheres showed high selectivity, low detection limit, excellent reusability, and reproducibility for nucleosides enrichment. They have great potential for identification and analysis of trace cis-diol containing nucleosides in biological samples.

ANALYTICA CHIMICA ACTA (2022)

Article Chemistry, Analytical

A ratiometric fluorescence platform based on carbon dots for visual and rapid detection of copper(II) and fluoroquinolones

Xue Gao et al.

Summary: A simple smartphone-integrated ratiometric fluorescent sensing system based on carbon dots was developed for visual determination of copper ions and fluoroquinolones. The system exhibited good selectivity and sensitivity, and a smartphone was used as a portable analyzer for quick analysis. This platform has potential applications in food safety monitoring.

MICROCHIMICA ACTA (2022)

Article Chemistry, Applied

A novel terbium (III) and aptamer-based probe for label-free detection of three fluoroquinolones in honey and water samples

Jin'ai Chen et al.

Summary: A sensitive and rapid label-free fluorescence assay was developed using a Tb3+ ion-enrofloxacin aptamer coordination probe for specific detection of three fluoroquinolones. The method showed high accuracy and recovery based on experimental results.

FOOD CHEMISTRY (2022)

Article Chemistry, Applied

Rapid detection of heterocyclic aromatic amines in cakes by digital imaging colorimetry based on magnetic solid phase extraction with sulfonated hyper-cross-linked polymers

Xiaohai Wu et al.

Summary: A porous magnetic adsorbent (Fe3O4@SHCP) was constructed by post-modification with sulfonic acid groups and magnetic nanoparticles for the magnetic solid-phase extraction of heterocyclic aromatic amines (HAAs). This method showed high extraction efficiency and sensitivity, allowing accurate monitoring of HAAs in baked cakes, and successfully evaluating the effect of baking conditions on HAAs.

FOOD CHEMISTRY (2022)

Article Biochemical Research Methods

Boronic acid grafted metal-organic framework for selective enrichment of cis -diol-containing compounds

Shitao Feng et al.

Summary: Boronic acid grafted Zr-MOF (BA-Zr-MOF) was constructed using a simple pre-installation strategy and showed excellent selectivity for cis -diol-containing compounds. A method based on BA-Zr-MOF for analysis of nucleosides was established, which demonstrated high adsorption capacity and low detection limits. The reliability of the method was confirmed through urine sample analysis.

JOURNAL OF CHROMATOGRAPHY A (2022)

Article Chemistry, Analytical

Lab-In-Syringe automation of deep eutectic solvent-based direct immersion single drop microextraction coupled online to high-performance liquid chromatography for the determination of fluoroquinolones

Sercan Yildirim et al.

Summary: Lab-In-Syringe direct immersion single drop microextraction coupled with HPLC is proposed for the determination of fluoroquinolones in environmental waters. A natural deep eutectic solvent is used as an extractant, reducing the use of toxic solvents and improving the environmental friendliness of the method. The method achieves accurate quantification of fluoroquinolones within a low linear working range.

TALANTA (2022)

Article Chemistry, Applied

Adsorption of aflatoxins and ochratoxins in edible vegetable oils with dopamine-coated magnetic multi-walled carbon nanotubes

Hongwen Xu et al.

Summary: A new, green, and cost-effective magnetic solid-phase extraction method was developed to extract aflatoxins and ochratoxins from edible vegetable oils samples using PDA@Fe3O4-MWCNTs as the absorbent. The method showed high recovery rates and selectivity, allowing for efficient quantification of the mycotoxins in complex sample matrices.

FOOD CHEMISTRY (2021)

Article Chemistry, Analytical

Porphyrin-based covalent organic framework coated stainless steel fiber for solid-phase microextraction of polycyclic aromatic hydrocarbons in water and soil samples

Chen Yu et al.

Summary: A porphyrin-based COF was synthesized and applied for the headspace solid-phase microextraction of PAHs, with optimized parameters leading to a wide linear range, low detection limits, and excellent repeatability. The method showed satisfactory recoveries of PAHs in water and soil samples, indicating its potential for environmental analysis.

MICROCHEMICAL JOURNAL (2021)

Article Chemistry, Analytical

Zeolitic imidazolate framework-8/ fluorinated graphene coated SiO2 composites for pipette tip solid-phase extraction of chlorophenols in environmental and food samples

Juan Zhang et al.

Summary: A novel composite adsorbent was prepared and utilized for extraction and detection of trace chlorophenols in water and drinks. The method showed high sensitivity and accuracy, as well as good stability and reproducibility, making it suitable for practical applications.

TALANTA (2021)

Review Materials Science, Multidisciplinary

Integration of metal-organic frameworks and covalent organic frameworks: Design, synthesis, and applications

Yang Li et al.

Summary: Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), which are porous crystalline materials, can be intermeshed into MOF/COF hybrids to enhance performance and extend applications.

MATTER (2021)

Article Biochemical Research Methods

Determination of quinolones in wastewater by porous β-cyclodextrin polymer based solid-phase extraction coupled with HPLC

Jingyi Zhang et al.

JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES (2017)

Article Multidisciplinary Sciences

Mussel-inspired surface chemistry for multifunctional coatings

Haeshin Lee et al.

SCIENCE (2007)