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The effect of some cationic amines (spermine, spermidine, hexamethonium bromide and tetramethylammonium bromide) on the mobility of electroosmotic flow (EOF) in open fused-silica capillaries was studied. The EOF was found to be significantly reduced with spermine and spermidine and to a lesser extent with hexamethonium bromide. Tetramethylammonium bromide was found to be ineffective as a flow modifier...
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