Specific background electrolytes for nonaqueous capillary electrophoresis |
| |
Authors: | Vaher Merike Koel Mihkel |
| |
Affiliation: | Department of Chemistry, Tallinn University of Technology, Ehitajate 5, 19086 Tallinn, Estonia. merike@chemnet.ee |
| |
Abstract: | The use of organic solvents or mixture of solvents in capillary electrophoresis is gaining wider attention. The electroosmotic flow mobility of eight organic solvents (acetonitrile, acetone, dimethylformamide, dimetylsulphoxide, propylene carbonate, methanol, ethanol, n-propanol) and of mixtures of several solvents (methanol-acetonitrile, methanol-propylene carbonate, acetonitrile-propylene carbonate) has been studied. The influence of 1,3-alkylimidazolium salts in different solvents on the separation of different analytes has been investigated. Some of these salts have shown usefulness for matrix-assisted laser desorption ionization matrices and off-line analysis of electrophoresis fractions. It also appears that nonaqueous capillary electrophoresis with 1,3-alkylimidazolium salts as background electrolytes is suitable for separation small inorganic ions. |
| |
Keywords: | Nonaqueous capillary electrophoresis Electroosmotic flow Alkylimidazolium salts Electrolyte modifier Phenolic compounds |
本文献已被 ScienceDirect PubMed 等数据库收录! |
|