In situ growth of hierarchical porous covalent organic framework coating for enhanced solid-phase microextraction of phenolic compounds DOI

Weikang Guo,

Hui Tao,

Haijuan Tao

et al.

Journal of Chromatography A, Journal Year: 2024, Volume and Issue: 1739, P. 465519 - 465519

Published: Nov. 14, 2024

Language: Английский

Defective porous urchin-like ZnO/NiO microspheres-coated solid-phase microextraction fiber for analysis of trace polychlorinated biphenyls in milk DOI
Shiping Zhu,

Zhen Song,

Youmei Wang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136362 - 136362

Published: Oct. 31, 2024

Language: Английский

Citations

9
Synthesis of a fluorophilic magnetic microporous organic network for selective enrichment of fipronil and ethiprole in milk and egg samples DOI

Jia-Mei Kang,

Yuanyuan Cui, Abdukader Abdukayum

et al.

Journal of Chromatography A, Journal Year: 2025, Volume and Issue: 1743, P. 465701 - 465701

Published: Jan. 21, 2025

Language: Английский

Citations

0
Sulfonic acid-functionalized covalent organic framework@Ti3C2T as efficient solid-phase microextraction blade coating for the extraction of monoamine neurotransmitters in rat serum samples DOI
Cheng Yang, Nian Yang, Di Zhao

et al.

Journal of Chromatography A, Journal Year: 2025, Volume and Issue: unknown, P. 465919 - 465919

Published: March 1, 2025

Language: Английский

Citations

0
Selective Recovery of Gold from Aqueous Media Using Magnetic PEG-Crosslinked Polystyrene DOI
S. Sajjadi, Sajad Ahmadi, Hossein Behniafar

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

PEG-cross-linked and triethylenetetramine (TETA)-terminated polystyrene chains were formed on the surface of magnetic nanoparticles through atom transfer radical polymerization (ATRP). The prepared organic-inorganic hybrid material (denoted as MNP-PEGPS-L) was used to adsorb Au(III) ions from aqueous solutions. MNP-PEGPS-L adsorbent characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), diffraction (XRD), vibrating-sample magnetometry (VSM). BET measurements showed that particles have a porous structure, their specific area found be 29.13 m2·g-1. Dynamic light scattering (DLS) revealed hydrodynamic diameter distribution follows bimodal pattern, with two peaks appearing at 705 nm 4087 nm. in an solution pH = 3 exhibited highest zeta potential value (+22 mV) and, therefore, greater resistance agglomeration. In adsorption studies, equilibrium concentrations (Ce values) measured using inductively coupled plasma optical emission spectrometry (ICP-OES). capacity (Qe) optimized Au(III)-containing solutions 3, dose 0.2 mg·mL-1, contact time 60 min, temperature 25 °C. Examination kinetics indicated occurs via chemisorption. maximum (Qmax) obtained Langmuir isotherm model (monolayer adsorption), approximately 280 mg·g-1. Additionally, study thermodynamics demonstrated phenomenon is endothermic spontaneously. Overall, polymer promising results recovery gold due its high hydrophilicity, porosity, excellent recyclability.

Language: Английский

Citations

0
Synthesis of mesopore-rich hollow carbon nanospheres as headspace solid-phase microextraction coating to extract PAHs from water and honey DOI

Jiawen Zhu,

Yingge Hao,

Zhen Song

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111290 - 111290

Published: May 1, 2025

Language: Английский

Citations

0
In situ growth of hierarchical porous covalent organic framework coating for enhanced solid-phase microextraction of phenolic compounds DOI

Weikang Guo,

Hui Tao,

Haijuan Tao

et al.

Journal of Chromatography A, Journal Year: 2024, Volume and Issue: 1739, P. 465519 - 465519

Published: Nov. 14, 2024

Language: Английский

Citations

2