NMR Study of BA/FBA Cocrystal Confined Within Mesoporous Silica Nanoparticles Employing Thermal Solid Phase Transformation

2015 ◽  
Vol 119 (16) ◽  
pp. 8652-8661 ◽  
Author(s):  
Ewa Skorupska ◽  
Piotr Paluch ◽  
Agata Jeziorna ◽  
Marek J. Potrzebowski
2005 ◽  
Vol 127 (9) ◽  
pp. 3057-3068 ◽  
Author(s):  
Julien Trébosc ◽  
Jerzy W. Wiench ◽  
Seong Huh ◽  
Victor S.-Y. Lin ◽  
Marek Pruski

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 ◽  
...  

2020 ◽  
Vol 3 (03) ◽  
pp. 54-64
Author(s):  
Roya Ashori ◽  
Seyed Alireza Hajiseyed Mirzahosseini

Molybdenum (Mo) ions enter to human body from the diet or drinking waters and have a potentially toxic effect on humans. The thiol-functionalized mesoporous silica nanoparticles (HS-MSNPs) were used for determination and speciation of Mo (II, VI) in human biological samples by dispersive ionic liquid-micro-solid phase extraction (DIL-μ-SPE) coupled to electrothermal atomic absorption spectrometry (ET-AAS). Firstly, the mixture of HS-MSNPs (15 mg), the hydrophobic ionic liquid (1-Hexyl-3-methylimidazolium tris(pentafluoroethyl) trifluorophosphate; [HMIM][T(PFE)PF3]) and acetone injected into 10 mL of human blood and serum samples. After shaking for 5 min, the Mo(II) and Mo(VI) ions were extracted with the thiol group of MSNPs at pH 6 and 2, respectively, and collected through IL at the bottom of the conical tube by centrifuging. Then, the MO(II,VI) ions were back-extracted from HS-MSNPs with elent based on changing pH, and remained solutions were determined by ET-AAS after dilution with DW up to 0.5 mL, separately.


2019 ◽  
Vol 2 (01) ◽  
pp. 5-14 ◽  
Author(s):  
Parisa Paydar ◽  
Ali Faghihi Zarandi

Chronic effect of manganese exposure to humans caused the dysfunction of nervous system. An applied sorbent based on hydrophobic ionic liquid passed on mesoporous silica nanoparticles was used for adsorption/removal of manganese dust (Mn) from workplace air by solid phase adsorption method. In bench scale set up, 5 mL of standard solution of nitrate and oxide of Mn (0.2-5 mg L-1) was used for generation of manganese dust in pure air by drying procedure, and then was passed through column of IL/MSNPs by SKC pump with flow rate  of 200-500 mL min-1 by SKC pump. The Mn particles separated from column of IL/MSNPs by irrigation of nitric acid solution before determined by F-AAS/ET-AAS. In optimized conditions, the adsorption capacity of MSNPs and IL/MSNPs for Mn removal from air in batch system (1 Li) was obtained 118.5 mg g-1 and 216.2 mg g-1, respectively.


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