標題: Separation of open-cage fullerenes using nonaqueous capillary electrophoresis
作者: Su, Hsiu-Li
Kao, Wan-Chun
Lee, Cheng-yu
Chuang, Shih-Ching
Hsieh, You-Zung
應用化學系
Department of Applied Chemistry
關鍵字: Nonaqueous capillary electrophoresis;Open-cage fullerene;Trifluoroacetic acid
公開日期: 25-Jun-2010
摘要: In this study, nonaqueous capillary electrophoresis (NACE) was used to separate three open-cage fullerenes. Trifluoroacetic acid (TFA) was used as the nonaqueous background electrolyte to change the analytes mobilities. The selectivity and separation efficiency were critically affected by the nature of the buffer system, the choice of organic solvent, and the concentrations of TFA and sodium acetate (NaOAc) in the background electrolyte. The optimized separation occurred using 200 mM TFA/20 mM NaOAc in MeOH/acetonitrile (10:90, v/v), providing highly efficient baseline separation of the open-cage fullerenes within 5 min. The migration time repeatability for the three analytes was less than 1% (relative standard deviation). Thus, NACE is a rapid, useful alternative to high-performance liquid chromatography for the separation of open-cage fullerenes. (C) 2010 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.chroma.2010.02.085
http://hdl.handle.net/11536/9234
ISSN: 0021-9673
DOI: 10.1016/j.chroma.2010.02.085
期刊: JOURNAL OF CHROMATOGRAPHY A
Volume: 1217
Issue: 26
起始頁: 4471
結束頁: 4475
Appears in Collections:Conferences Paper


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