scholarly journals Packed hybrid silica nanoparticles as sorbents with thermo-switchable surface chemistry and pore size for fast extraction of environmental pollutants

RSC Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 1246-1254 ◽  
Author(s):  
Sushilkumar A. Jadhav ◽  
Roberto Nisticò ◽  
Giuliana Magnacca ◽  
Dominique Scalarone
Keyword(s):  
Solid Phase Extraction ◽  
Surface Chemistry ◽  
Pore Size ◽  
Silica Nanoparticles ◽  
Solid Phase ◽  
Environmental Pollutants ◽  
Phase Extraction ◽  
Water Pollutants ◽  
Hybrid Silica ◽  
Fast Extraction

Thermoresponsive poly(N-isopropylacrylamide)-grafted silica nanoparticles were synthesized and used to prepare solid phase extraction sorbents with switchable pore size and surface chemistry for temperature-regulated extraction of water pollutants.

scholarly journals Binding of Heterocycles by Cyclohexanohemicucurbiturils and Solid-Phase Extraction of Sulfur-Containing Heterocycles from Water

2021 ◽  
Author(s):  
Tatsiana Shalima ◽  
Kamini A. Mishra ◽  
Sandra Kaabel ◽  
Lukas Ustrnul ◽  
Simona Bartkova ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Environmental Pollutants ◽  
Titration Calorimetry ◽  
Phase Extraction ◽  
X Ray Diffraction ◽  
Bioactive Substances ◽  
Sorption Material ◽  
Sulfur Heterocycles ◽  
Hazardous Compounds

Here we report a study on cyclohexanohemicucurbit[8]uril (cycHC[8]) binding of sulfur-, oxygen- and nitrogen-containing heterocycles in both solid state and solution, which is investigated by single crystal X-ray diffraction, NMR spectroscopy, isothermal titration calorimetry, and thermogravimetry. Potential guests include environmental pollutants, hazardous compounds, and bioactive substances. We found that cycHC[8] encapsulates five- and six-membered sulfur- and oxygen-containing unsubstituted heterocycles and can be used as a selective sorption material for the extraction of sulfur-heterocycles from water. Both cycHC[6] and cycHC[8] can remove a substituted heterocycle, α-lipoic acid, from an aqueous solution via the formation of an external complex. The results show that cycHC[<i>n</i>] is a promising reusable sorbent material with the potential to be employed in molecular recognition and highly specific solid-phase extraction of sulfur-heterocycles.

Solid-phase extraction of phospholipids using mesoporous silica nanoparticles: application to human milk samples

2018 ◽  
Vol 410 (20) ◽  
pp. 4847-4854 ◽  
Author(s):  
Héctor Martínez Pérez-Cejuela ◽  
Isabel Ten-Doménech ◽  
Jamal El Haskouri ◽  
Pedro Amorós ◽  
Ernesto F. Simó-Alfonso ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Solid Phase Extraction ◽  
Human Milk ◽  
Silica Nanoparticles ◽  
Solid Phase ◽  
Mesoporous Silica Nanoparticles ◽  
Phase Extraction ◽  
Milk Samples

scholarly journals Automated solid-phase extraction of organic pollutants using melamine–formaldehyde polymer-derived carbon foams

RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 48558-48565 ◽  
Author(s):  
Milad Ghani ◽  
Fernando Maya ◽  
Víctor Cerdà
Keyword(s):  
Solid Phase Extraction ◽  
Organic Pollutants ◽  
Solid Phase ◽  
Environmental Pollutants ◽  
Phase Extraction ◽  
Polymer Foams ◽  
Melamine Formaldehyde ◽  
Carbon Foams ◽  
Automated Solid Phase Extraction

Solid-phase extraction of environmental pollutants is accomplished using carbon foams derived from melamine–formaldehyde polymer foams.

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