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: | 25-六月-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 |
顯示於類別: | 會議論文 |