Enrichment and determination of polybrominated diphenyl ethers in environmental water samples by magnetic solid-phase extraction with core-shell magnetic carbon microspheres before gas chromatography with mass spectrometry

2016 ◽  
Vol 39 (10) ◽  
pp. 1955-1962 ◽  
Author(s):  
Jia-Bin Zhou ◽  
Xiao-Kun She ◽  
Han-Zhu Xing ◽  
Xia Wang ◽  
Ru-Song Zhao
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Environmental Water ◽  
Phase Extraction ◽  
Carbon Microspheres ◽  
Diphenyl Ethers ◽  
Magnetic Solid ◽  
Magnetic Carbon

Ionic liquid-based carbon nanotube coated magnetic nanoparticles as adsorbent for the magnetic solid phase extraction of triazole fungicides from environmental water

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 81877-81885 ◽  
Author(s):  
Fujiang Chen ◽  
Zhiyu Song ◽  
Jing Nie ◽  
Guowei Yu ◽  
Zuguang Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Environmental Water ◽  
Phase Extraction ◽  
Triazole Fungicides ◽  
Magnetic Solid ◽  
Magnetic Carbon ◽  
Magnetic Carbon Nanotubes

Ionic liquid-based magnetic carbon nanotubes (IL-Fe3O4@MWCNTs) were synthesized as a novel adsorbent in MSPE for determination of six triazole fungicides in environmental water.

Magnetic Solid-Phase Extraction Based on Fe3O4/g-C3N4 Nanocomposite for the Determination of Polychlorinated Biphenyls and Polychlorinated Diphenyl Ethers in Environmental Waters

2020 ◽  
Vol 20 (12) ◽  
pp. 7469-7479
Author(s):  
Dongliang Ji ◽  
Meixing Zhang ◽  
Xinxiang Geng ◽  
Zhenxing Zha ◽  
Ying Li ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Environmental Water ◽  
Environmental Waters ◽  
Diphenyl Ethers ◽  
Preconcentration Factor ◽  
Magnetic Solid ◽  
Polychlorinated Diphenyl Ethers

The graphitic carbon nitride (g-C3N4) and the Fe3O4/g-C3N4 magnetic materials were synthesized in this paper. The structures of the materials were confirmed by a series of analysis. The Fe3O4/g-C3N4 was then used as a sorbent to adsorb polychlorinated diphenyl ethers and polychlorinated biphenyls. Different extraction conditions were examined, including adsorbent amount, salinity, pH of the sample matrix, adsorption time, reaction temperature, elution solvent and preconcentration factor. The maximum recoveries were obtained by employing methanol to desorb pollutants on 40.0 mg Fe3O4/g-C3N4 in 120.0 mL environmental water with a salinity of 5% (w/v) at a pH of 7 at 25 °C within 10 min. Using the optimized parameters, the detection limits of the method are between 0.01 and 0.04 μ · L−1 with a satisfying linear relationship. The adsorbent can be recycled at least 10 times with no significant reduction in the extraction efficiency.

Magnetic solid-phase extraction based on magnetic carbon nanotube for the determination of estrogens in milk

2011 ◽  
Vol 34 (18) ◽  
pp. 2498-2504 ◽  
Author(s):  
Jun Ding ◽  
Qiang Gao ◽  
Xiao-Shui Li ◽  
Wei Huang ◽  
Zhi-Guo Shi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Magnetic Solid ◽  
Magnetic Carbon

Rapid determination of polycyclic aromatic hydrocarbons in environmental water based on magnetite nanoparticles/polypyrrole magnetic solid-phase extraction

2014 ◽  
Vol 6 (17) ◽  
pp. 7046-7053 ◽  
Author(s):  
Sheng-Nan Xu ◽  
Qin Zhao ◽  
Hai-Bo He ◽  
Bi-Feng Yuan ◽  
Yu-Qi Feng ◽  
...  
Keyword(s):  
Aromatic Hydrocarbons ◽  
Solid Phase ◽  
Rapid Determination ◽  
Magnetic Solid Phase Extraction ◽  
Environmental Water ◽  
Phase Extraction ◽  
Water Based ◽  
Polycyclic Aromatic ◽  
Magnetic Solid

A sensitive and less time-consuming method was established by coupling MSPE with GC-MS for the analysis of PAHs in environmental water samples.

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