RECENTLY ELECTROMEMBRANE EXTRACTION (EME) WAS PRESENTED IN ORDER TO DECREASE THE EXTRACTION TIME. IN THIS CONCEPT, CHARGED ANALYTES ARE EXTRACTED ACROSS THE SLM BASED ON ELECTROKINETIC MIGRATION. IN THIS WORK, EME METHOD WAS DEVELOPED FOR PRECONCENTRATION AND DETERMINATION OF TETRABENAZINE ENANTIOMERS IN URINE SAMPLES USING ELECTROMEMBRANE EXTRACTION COMBINED WITH CYCLODEXTRIN-MODIFIED CAPILLARY ELECTROPHORESIS (CE)...