期刊
ELECTROPHORESIS
卷 24, 期 16, 页码 2779-2787出版社
WILEY
DOI: 10.1002/elps.200305542
关键词
capillary electrophoresis; large-volume stacking using the EOF pump; nonsteroidal anti-inflammatory drugs; water samples
Large-volume sample stacking using the electroosmotic flow (EOF) pump (LVSEP) has been used to analyze some nonsteroidal anti-inflammatory drugs (NSAIDs) in water samples. With methanol as the run buffer solvent to suppress the EOF, sensitivity was enhanced by 80-100-fold. The sample for the analysis of real water sample was pretreated by solid-phase extraction (SPE). When the method was based on off-line SPE-LVSEP-CE, sensitivity improved by as much as 1000 times.
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