scholarly journals Fluoroponytailed Ionic Liquids as Co-Porogens for Poly(butyl methacrylate-co-ethylene dimethacrylate) Monolithic Supports for Thin Layer Chromatography

The Analyst ◽  
2022 ◽  
Author(s):  
Manuel Otter ◽  
Gabriel Partl ◽  
Michael Franz Noisternig ◽  
Rania Bakry

Porous layered monolithic substrates of poly(butyl methacrylate-co-ethylene dimethacrylate) were synthesized via UV initiated free radical polymerization in presence of fluoroponytailed ionic liquids as co-porogenic constituents. The effects of the type...

2006 ◽  
Vol 39 (3) ◽  
pp. 923-930 ◽  
Author(s):  
Veronika Strehmel ◽  
André Laschewsky ◽  
Hendrik Wetzel ◽  
Eckhard Görnitz

2012 ◽  
Vol 3 (1) ◽  
pp. 7-14
Author(s):  
Rahmiwati Hilma ◽  
Jasril ◽  
Hilwan Yuda Teruna

Study on chalcone calkon (E)-1,3-di(naphthalen-2-yl)prop-2-en-1-one synthesis have been carried out with stirrer methode. These compounds can be used as intermediate compound to synthesize others compounds which was reported having antimicrobial, anti-inflammatory, anti-depressant, anti-tumour. The of chalcones synthesis vatives were reported in acid and alkali condition. In this study, chalcone and its derivates were synthesized by using stirrer method in alkaline condition in room temperature. the compounds subjected to somes analyses including melting point measurement, thin layer chromatography and HPLC. Scavenging free radical by using DPPH methode showed Scavenging free radical with LC50 >80 μg/ml min potent activity while the ascorbat acid LC50 89,79 μg/ml.


2010 ◽  
Vol 43 (2) ◽  
pp. 126-135 ◽  
Author(s):  
Yakov S Vygodskii ◽  
Dmitrii A Sapozhnikov ◽  
Alexander S Shaplov ◽  
Elena I Lozinskaya ◽  
Nikolai V Ignat'Ev ◽  
...  

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Jing Lu ◽  
Hong-yan Ma ◽  
Wei Zhang ◽  
Zhi-guo Ma ◽  
Shun Yao

[BMIM]OH was used in mobile and stationary phase of thin layer chromatography (TLC) to analyze berberine hydrochloride and tetrahydropalmatine for the first time. Supported imidazole ionic liquid with hydroxide ion on silica gel (SiO2·Im+·OH−) was synthesized through simple procedure and characterized by Fourier transform infrared spectroscopy (FT-IR), elemental analysis, and scanning electron microscope (SEM). Moreover, on the plates prepared by SiO2·Im+·OH−, the contents of the above alkaloids in the Chinese patent medicine (CPM) of “Stomacheasy” capsule were successfully determined by TLC scanner. The key conditions and chromatographic behaviors were also investigated in detail. According to similar ways, ionic liquids (ILs) also can be used in other planar chromatographies in two modes. This study is expected to be helpful in expanding the application of IL and its bonded silica gel in TLC separation field.


2014 ◽  
Vol 342 (1) ◽  
pp. 78-85 ◽  
Author(s):  
Veronika Strehmel ◽  
Hendrik Wetzel ◽  
André Laschewsky

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