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Chem. J. Chinese Universities ›› 2001, Vol. 22 ›› Issue (11): 1803.

• Articles • Previous Articles     Next Articles

Sodium Ion Transfer Across Micro Water/1,2-DCE Interface Facilitated by Liquid Crystal Crown Ether

TONG Yue-Hong1, HUANG Zai-Fu2, SHAO Yuan-Hua1, WANG Er-Kang1   

  1. 1. Laboratoryof Electroanalytical Chemistry, Changchun Instituteof Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    2. College of Chemicaland Environmental Science, Wuhan University, Wuhan 430072, China
  • Received:2000-09-26 Online:2001-11-24 Published:2001-11-24

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Abstract: The sodium ion transfer across the micro water/1,2-dichloroethane interface facilitated by a novel ionophore, liquid crystal crown ether was studied systematically. The sodium ion transfer facilitated by LCCEis controlled by diffusion studied by cyclic voltammetry. The diffusion coefficient of LCC-Ein-1,2-dichloroethane was calculated to be equal to (2.61±0.12)×10-6 cm2/s and the stability constant of the complex between Na+ and LCCEwas determined as lg βo=5.7 in 1,2-dichloroethane.

Key words: Facilitated ion transfer, Micro liquid/liquid interface, Liquid crystal crown ether

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