scholarly journals Mesoporous Silica With Covalently Immobilized Anthracene As Adsorbent For SPE Recovery Of PAHs Pollutants From Highly Lipidic Solutions

2021 ◽  
Vol 16 (1) ◽  
pp. 5-14
Author(s):  
Albina Mikhraliieva ◽  
Rodrigo A. Gonзalves ◽  
Vladimir Zaitsev
Keyword(s):  
Mesoporous Silica ◽  
Vegetable Oil ◽  
Myristic Acid ◽  
Solid Phase ◽  
Functionalized Mesoporous Silica ◽  
High Lipid ◽  
Two Samples ◽  
Polycyclic Aromatic ◽  
One Step ◽  
Π Stacking Interaction

Two samples of functionalized mesoporous silica containing anchored anthrylmethylamine groups (SiO2-Ant) have been prepared by surface assembling (1) and one step silane immobilization (2). Both adsorbents can be attributed to bimodal balanced hydrophobic-hydrophilic adsorbents with loading of anthracene groups about 15-33 %. The adsorbents have been used for solid-phase extraction (SPE) of anthracene from organic solvents (acetonitrile, acetone and heptane) and model solutions of lipids (myristic acid and vegetable oil). The obtained results were compared with commercial C18 SPE cartridge. While C18 cartridge recovers anthracene from water-containing media (acetonitrile/water, 1/1), SiO2-Ant cartridges much more efficient in extraction of anthracene from non-polar solvent (heptane). Lipids macrocomponents such as myristic acid and vegetable oil do not decrease the dynamic adsorption capacity and recovery of the model polycyclic aromatic hydrocarbon (PAH) on SiO2-Ant. It was demonstrated that π-π stacking interaction with the analyte determine the selectivity of SiO2-Ant towards of anthracene. This makes SiO2-Ant attractive for selective preconcentration of PAHs from high lipid content objects, such as vegetable oils.

scholarly journals Mesoporous Silica with Covalently Immobilized Anthracene as Adsorbent for SPE Recovery of PAHs Pollutants from Highly Lipidic Solutions

2020 ◽  
Author(s):  
Albina Mikhraliieva ◽  
Rodrigo Araújo Gonçalves ◽  
Volodymyr Zaitsev
Keyword(s):  
Mesoporous Silica ◽  
Vegetable Oil ◽  
Myristic Acid ◽  
Polar Solvent ◽  
Dynamic Adsorption ◽  
Functionalized Mesoporous Silica ◽  
High Lipid ◽  
Two Samples ◽  
One Step ◽  
Π Stacking Interaction

Two samples of functionalized mesoporous silica containing anchored anthrylmethylamine groups (SiO<sub>2</sub>-Ant) have been prepared by surface assembling (1) and one step silane immobilization (2). Both adsorbents can be attributed to bimodal balanced hydrophobic-hydrophilic adsorbents with loading of anthracene groups about 15-33%. The adsorbents have been used for SPE of anthracene from organic solvents (acetonitrile, acetone and heptane) and model solutions of lipids (myristic acid and vegetable oil). The obtained results were compared with commercial C18 SPE cartridge. While C18 cartridge recovers anthracene from water-containing media (acetonitrile/water, 1/1), SiO<sub>2</sub>-Ant cartridges much more efficient in extraction of anthracene from non-polar solvent (heptane). Lipids macrocomponents such as myristic acid and vegetable oil do not decrease the dynamic adsorption capacity and recovery of the model PAH on SiO<sub>2</sub>-Ant. It was demonstrated that π-π stacking interaction with the analyte determine the selectivity of SiO<sub>2</sub>-Ant towards of anthracene. This makes SiO<sub>2</sub>-Ant attractive for selective pre-concentration of PAHs from high lipid content objects, such as vegetable oils.

scholarly journals Mesoporous Silica with Covalently Immobilized Anthracene as Adsorbent for SPE Recovery of PAHs Pollutants from Highly Lipidic Solutions

2020 ◽  
Author(s):  
Albina Mikhraliieva ◽  
Rodrigo Araújo Gonçalves ◽  
Volodymyr Zaitsev
Keyword(s):  
Mesoporous Silica ◽  
Vegetable Oil ◽  
Myristic Acid ◽  
Polar Solvent ◽  
Dynamic Adsorption ◽  
Functionalized Mesoporous Silica ◽  
High Lipid ◽  
Two Samples ◽  
One Step ◽  
Π Stacking Interaction

Two samples of functionalized mesoporous silica containing anchored anthrylmethylamine groups (SiO<sub>2</sub>-Ant) have been prepared by surface assembling (1) and one step silane immobilization (2). Both adsorbents can be attributed to bimodal balanced hydrophobic-hydrophilic adsorbents with loading of anthracene groups about 15-33%. The adsorbents have been used for SPE of anthracene from organic solvents (acetonitrile, acetone and heptane) and model solutions of lipids (myristic acid and vegetable oil). The obtained results were compared with commercial C18 SPE cartridge. While C18 cartridge recovers anthracene from water-containing media (acetonitrile/water, 1/1), SiO<sub>2</sub>-Ant cartridges much more efficient in extraction of anthracene from non-polar solvent (heptane). Lipids macrocomponents such as myristic acid and vegetable oil do not decrease the dynamic adsorption capacity and recovery of the model PAH on SiO<sub>2</sub>-Ant. It was demonstrated that π-π stacking interaction with the analyte determine the selectivity of SiO<sub>2</sub>-Ant towards of anthracene. This makes SiO<sub>2</sub>-Ant attractive for selective pre-concentration of PAHs from high lipid content objects, such as vegetable oils.

Electrophoretic deposition hyphenated with electrochemical anodization for the fabrication of phenyl-functionalized mesoporous silica onto Nitinol fibers for selective solid-phase microextraction of polycyclic aromatic hydrocarbons

2017 ◽  
Vol 9 (46) ◽  
pp. 6459-6467 ◽  
Author(s):  
Panxia Jin ◽  
Shanshan Zhou ◽  
Huiju Wang ◽  
Ziyi Wang ◽  
Xuemei Wang ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Electrophoretic Deposition ◽  
Aromatic Hydrocarbons ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Electrochemical Anodization ◽  
Niti Wire ◽  
Spme Fiber ◽  
Functionalized Mesoporous Silica ◽  
Polycyclic Aromatic

Electrophoretic deposition (EPD) was hyphenated with electrochemical anodization for the fabrication of phenyl modified mesoporous silica (MPS-Ph) particles onto Nitinol (NiTi) wire as a solid-phase microextraction (SPME) fiber.

scholarly journals Selective extraction of aliphatic amines by functionalized mesoporous silica-coated solid phase microextraction Arrow

2019 ◽  
Vol 186 (7) ◽  
Author(s):  
Hangzhen Lan ◽  
Wenzhong Zhang ◽  
Jan-Henrik Smått ◽  
Risto T. Koivula ◽  
Kari Hartonen ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Selective Extraction ◽  
Aliphatic Amines ◽  
Functionalized Mesoporous Silica
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