Polystyrene-divinylbenzene stationary phases agglomerated with quaternized multi-walled carbon nanotubes for anion exchange chromatography

2013 ◽  
Vol 1294 ◽  
pp. 152-156 ◽  
Author(s):  
Zhongping Huang ◽  
Hongwei Wu ◽  
Fengli Wang ◽  
Wenwu Yan ◽  
Weiqiang Guo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Anion Exchange ◽  
Stationary Phases ◽  
Anion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Application of a Mixture of Oxidized Multi-Walled Carbon Nanotubes and D-(-)-Tartaric Acid-Impregnated Silica Gel as Stationary Phases for Thin-Layer Chromatographic Enantioseparation

2012 ◽  
Vol 602-604 ◽  
pp. 278-280
Author(s):  
Zhi Guang Peng ◽  
Dong Hong Yin ◽  
Jian Fu Liu ◽  
Jin Gang Yu ◽  
Xiao Na Yang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Tartaric Acid ◽  
Mandelic Acid ◽  
Stationary Phases ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Layer Chromatography ◽  
Ofloxacin Enantiomers

The oxidized multi-walled carbon nanotubes were prepared by a nitric acid treatment procedure, which were then used as additive in thin-layer chromatography stationary phases for resolution of ofloxacin, mandelic acid and 2-chloro-mandelic acid enantiomers. In a sharp contrast with pristine multi-walled carbon nanotubes/D-(-)-tartaric acid impregnated thin-layer chromatography plates, oxidized multi-walled carbon nanotubes/D-(-)-tartaric acid impregnated plates presented better enantioseparation effects for ofloxacin enantiomers.

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