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Citation: MA Hua-Qiao, LUO Mi-Na, SHAO Shi-Jun, LIU Xia, JIANG Sheng-Xiang. Separation of Neutral Calix[4] pyrroles by Nonaqueous Capillary Electrophoresis[J]. Chinese Journal of Applied Chemistry, ;2009, 26(3): 249-252. shu

Separation of Neutral Calix[4] pyrroles by Nonaqueous Capillary Electrophoresis

1.
a Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;
2.
b Graduate University of the Chinese Academy of Sciences, Beijing

Corresponding author: JIANG Sheng-Xiang,
Received Date: 15 February 2008
Available Online: 28 June 2008
Fund Project: 国家自然科学基金资助项目(20527005,20775084) (20527005,20775084)

The separation of neutral macrocyclic calix[4]pyrroles with 1-butyl-3-methylimidazolium chloride as background electrolyte in acetonitrile was carried out by nonaqueous capillary electrophoresis.Hydrogen bonding effect plays an important role in the separation and is the prerequisite of the separation according to the direction of applied voltage and migration order of electoosmotic flow and the analytes.There is a CH-π effect in this separation according to Debye-Hükel theory.In order to investigate the mechanism of the separation,the molar fraction of three species(C₄P,C₄PCl^-,C₄PCl^-R⁺) were calculated.It was found that the C₄PCl^- was the major component and decreased with the increase of BGE concentration,C₄PCl^-R⁺ increased with the increase of BGE concentration.
- calix[4]pyrrole,
- ionic liquid,
- nonaqueous capillary electrophoresis,
- hydrogen bonding effect
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