Chapter 29 Sample cleanup and concentration techniques for capillary electrophoresis

Abstract

29.5 Summary Sample preparation including cleanup and preconcentration is very important to the widespread application of CE in various fields and various samples. All the above on-line sample cleanup and preconcentration methods can greatly lower the detection limit of CE, and some of them have been successfully applied to practical samples. However, direct injection of a sample with complex matrix (e.g., biological samples) is still limited. More advanced and practical sample preparation techniques for CE are required. Since more and more researchers are using CE, and more and more samples are analyzed with CE, it is expected that new sample preparation techniques will appear in the near future.