Sample stacking of fast-moving anions in capillary zone electrophoresis with pH-suppressed electroosmotic flow |
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Authors: | Joselito P. Quirino and Shigeru Terabe |
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Affiliation: | Faculty of Science, Himeji Institute of Technology, Kamigori, Hyogo 678-1297, Japan |
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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. |
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Keywords: | Inorganic anions |
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