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Sample stacking of fast-moving anions in capillary zone electrophoresis with pH-suppressed electroosmotic flow
1Faculty of Science, Himeji Institute of Technology, Hyogo, Japan. jquirino@sci.himeji-tech.ac.jp
Journal of Chromatography. A
|August 24, 1999
Abstract:
On-line sample concentration of fast moving inorganic anions by large volume sample stacking (LVSS) and field enhanced sample injection (FESI) with a water plug under acidic conditions is presented. Detection sensitivity enhancements were around 100 and 1000-fold for LVSS and FESI, respectively. However, reproducibility and linearity of response in the LVSS approach is superior compared to the FESI approach.