Determination of enantiomeric impurity in levocetirizine tablets by capillary electrophoresis / 浙江大学学报·医学版

ABSTRACT

<p><b>OBJECTIVE</b>To determine enantiomeric impurity in levocetirizine tablets by using capillary electrophoresis.</p><p><b>METHODS</b>The effects of pH and the concentrations of sulfated-Β-cyclodextrin (S-Β-CD) and buffer salt on chiral resolution were examined with S-Β-CD as chiral selector.</p><p><b>RESULTS</b>A good enantioseparation of cetirizine was achieved with 30 mmol/L NaH2PO4 buffer solution (pH 7.0) containing 20 g/L of S-Β-CD.</p><p><b>CONCLUSION</b>The method developed in the study is sensitive and reliable for determination of enantiomeric impurity in levocetirizine tablets.</p>