2006
DOI: 10.1002/elps.200500844
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Chiral separation of cetirizine by capillary electrophoresis

Abstract: Chiral separation of cetirizine, a second-generation H(1)-antagonist, was studied by CD-mediated CE. Several parameters, including pH, CD type, buffer concentration, type of co-ion, applied voltage and temperature, were investigated. The best conditions for chiral separation were obtained using a 75 mM triethanolamine-phosphate buffer (pH 2.5) containing 0.4 mg/mL heptakis(2,3-diacetyl-6-sulfato)-beta-CD and 10% ACN. Online UV detection was performed at 214 nm, a voltage of 20 kV was applied and the capillary … Show more

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Cited by 32 publications
(24 citation statements)
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References 45 publications
(31 reference statements)
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“…[17]. Eeckhaut et al established optimized conditions for enantioseparation of cetirizine including heptakis (2,3-diacetyl-6-sulfato)-b-CD as chiral selector, organic modifier, and co-ion in phosphate buffer (pH 2.5) [18]. We attempted to simplify the separation conditions; therefore, the enantioseparation of cetirizine by simple CD-mediated CE was studied.…”
Section: Resultsmentioning
confidence: 99%
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“…[17]. Eeckhaut et al established optimized conditions for enantioseparation of cetirizine including heptakis (2,3-diacetyl-6-sulfato)-b-CD as chiral selector, organic modifier, and co-ion in phosphate buffer (pH 2.5) [18]. We attempted to simplify the separation conditions; therefore, the enantioseparation of cetirizine by simple CD-mediated CE was studied.…”
Section: Resultsmentioning
confidence: 99%
“…The sulfated groups in b-CD provide a derivative which is anionic over the entire pH range accessible to CE experiments and which can thereby lead to ionic interactions in addition to hydrophobic inclusion. The ionizable functional groups in the structure of cetirizine have an acidic group (pK a 2.9) and two basic groups (pK a 2.2 and 8.0) [18]. Hence, its enantiomers exist almost exclusively as a zwitterion in the pH region 3.5 -7.5 [3].…”
Section: Concentration and Ph Of Borate Buffer Systemmentioning
confidence: 98%
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“…UV (ultraviolet) detection was performed for the quantification of levocetirizine in the tablets and for enantiomeric purity testing of the drug by a validated, selective, precise and accurate method [8].…”
mentioning
confidence: 99%