Abstract
A method of simultaneous enantiomeric separation of weak acidic naproxen and neutral methyl naproxen using both neutral hydroxypropyl-β-cyclodextrin(HP-β-CD) and charged sulfated β-cyclodextrin(SO3-β-CD) as chiral additives by capillary electrophoresis was described. Chiral recognition mechanism was studied by investigation of the effect of chiral selectors concentration, pH, and electrophoretic polarity mode on separation of enantiomers. In a real sample under optimum conditions the optical purity for both precursor and product was determined as 88.3% and 94.9%, respectively. The limit of detection, linearity, and reproducibility of the method were also investigated in this paper.
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